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25387000008553 = 192742748716881
BaseRepresentation
bin1011100010110110111110…
…00111100000111101101001
310022212222021200101000100001
411301123133013200331221
511311420034000233203
6125554343215543001
75230102345414261
oct561333707407551
9108788250330301
1025387000008553
1180a8625737a07
122a20206b2aa61
131121ca36184b1
1463aa474407a1
152e0592a5191d
hex1716df1e0f69

25387000008553 has 8 divisors (see below), whose sum is σ = 26724132789920. Its totient is φ = 24049964715840.

The previous prime is 25387000008551. The next prime is 25387000008593. The reversal of 25387000008553 is 35580000078352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25387000008553 - 21 = 25387000008551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25387000008551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23837328 + ... + 24879553.

It is an arithmetic number, because the mean of its divisors is an integer number (3340516598740).

Almost surely, 225387000008553 is an apocalyptic number.

It is an amenable number.

25387000008553 is a deficient number, since it is larger than the sum of its proper divisors (1337132781367).

25387000008553 is a wasteful number, since it uses less digits than its factorization.

25387000008553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48744327.

The product of its (nonzero) digits is 1008000, while the sum is 46.

The spelling of 25387000008553 in words is "twenty-five trillion, three hundred eighty-seven billion, eight thousand, five hundred fifty-three".

Divisors: 1 19 27427 521113 48716881 925620739 1336157895187 25387000008553