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25250014997 = 237915788513
BaseRepresentation
bin10111100001000001…
…001010011100010101
32102011201100122220122
4113201001022130111
5403203000434442
615333311241325
71552501405034
oct274101123425
972151318818
1025250014997
11a787a7aa99
124a88219245
1324c528299c
14131766871b
159cbb0add2
hex5e104a715

25250014997 has 16 divisors (see below), whose sum is σ = 26851607040. Its totient is φ = 23694308352.

The previous prime is 25250014991. The next prime is 25250015033. The reversal of 25250014997 is 79941005252.

It is a cyclic number.

It is not a de Polignac number, because 25250014997 - 212 = 25250010901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25250014991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 241013 + ... + 329525.

It is an arithmetic number, because the mean of its divisors is an integer number (1678225440).

Almost surely, 225250014997 is an apocalyptic number.

It is an amenable number.

25250014997 is a deficient number, since it is larger than the sum of its proper divisors (1601592043).

25250014997 is a wasteful number, since it uses less digits than its factorization.

25250014997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88772.

The product of its (nonzero) digits is 226800, while the sum is 44.

The spelling of 25250014997 in words is "twenty-five billion, two hundred fifty million, fourteen thousand, nine hundred ninety-seven".

Divisors: 1 23 79 157 1817 3611 12403 88513 285269 2035799 6992527 13896541 160828121 319620443 1097826739 25250014997