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25055527550553 = 3210212726687077
BaseRepresentation
bin1011011001001101100011…
…10100011011111001011001
310021201021200210110110120100
411230212301310123321121
511241002210023104203
6125142203410450013
75164126221125403
oct554466164337131
9107637623413510
1025055527550553
117a8aa98119145
122987b19593909
1310c9959356796
146289a04bdb73
152d6b4235eea3
hex16c9b1d1be59

25055527550553 has 12 divisors (see below), whose sum is σ = 36226764518308. Its totient is φ = 16687324905120.

The previous prime is 25055527550551. The next prime is 25055527550723. The reversal of 25055527550553 is 35505572555052.

It can be written as a sum of positive squares in 2 ways, for example, as 20451812327424 + 4603715223129 = 4522368^2 + 2145627^2 .

It is not a de Polignac number, because 25055527550553 - 21 = 25055527550551 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25055527550553.

It is not an unprimeable number, because it can be changed into a prime (25055527550551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1363334350 + ... + 1363352727.

Almost surely, 225055527550553 is an apocalyptic number.

It is an amenable number.

25055527550553 is a deficient number, since it is larger than the sum of its proper divisors (11171236967755).

25055527550553 is a wasteful number, since it uses less digits than its factorization.

25055527550553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2726688104 (or 2726688101 counting only the distinct ones).

The product of its (nonzero) digits is 32812500, while the sum is 54.

The spelling of 25055527550553 in words is "twenty-five trillion, fifty-five billion, five hundred twenty-seven million, five hundred fifty thousand, five hundred fifty-three".

Divisors: 1 3 9 1021 3063 9189 2726687077 8180061231 24540183693 2783947505617 8351842516851 25055527550553