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54387936025 = 524153061401
BaseRepresentation
bin110010101001110001…
…100000101100011001
312012101101111102020221
4302221301200230121
51342341302423100
640552510120041
73633532554103
oct625161405431
9165341442227
1054387936025
112107a632365
12a65a4b0021
135189b6a887
1428bd3c8573
151634be901a
hexca9c60b19

54387936025 has 12 divisors (see below), whose sum is σ = 69085945404. Its totient is φ = 42449120000.

The previous prime is 54387936007. The next prime is 54387936047. The reversal of 54387936025 is 52063978345.

It can be written as a sum of positive squares in 6 ways, for example, as 234457344 + 54153478681 = 15312^2 + 232709^2 .

It is not a de Polignac number, because 54387936025 - 27 = 54387935897 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26529676 + ... + 26531725.

It is an arithmetic number, because the mean of its divisors is an integer number (5757162117).

Almost surely, 254387936025 is an apocalyptic number.

It is an amenable number.

54387936025 is a deficient number, since it is larger than the sum of its proper divisors (14698009379).

54387936025 is a wasteful number, since it uses less digits than its factorization.

54387936025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53061452 (or 53061447 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 52.

The spelling of 54387936025 in words is "fifty-four billion, three hundred eighty-seven million, nine hundred thirty-six thousand, twenty-five".

Divisors: 1 5 25 41 205 1025 53061401 265307005 1326535025 2175517441 10877587205 54387936025