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25374884113 = 231103255831
BaseRepresentation
bin10111101000011101…
…100000000100010001
32102111102022200010201
4113220131200010101
5403431432242423
615353531455201
71555545645655
oct275035400421
972442280121
1025374884113
11a841508007
124b01bb7501
1325150c2c37
14132a090a65
159d7a742ad
hex5e8760111

25374884113 has 4 divisors (see below), whose sum is σ = 26478139968. Its totient is φ = 24271628260.

The previous prime is 25374884111. The next prime is 25374884153. The reversal of 25374884113 is 31148847352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25374884113 - 21 = 25374884111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25374884111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 551627893 + ... + 551627938.

It is an arithmetic number, because the mean of its divisors is an integer number (6619534992).

Almost surely, 225374884113 is an apocalyptic number.

25374884113 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

25374884113 is a deficient number, since it is larger than the sum of its proper divisors (1103255855).

25374884113 is a wasteful number, since it uses less digits than its factorization.

25374884113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103255854.

The product of its digits is 645120, while the sum is 46.

The spelling of 25374884113 in words is "twenty-five billion, three hundred seventy-four million, eight hundred eighty-four thousand, one hundred thirteen".

Divisors: 1 23 1103255831 25374884113