25112050749081 has 24 divisors (see below), whose sum is σ = 36305438401440. Its totient is φ = 16726379342400.

The previous prime is 25112050749053. The next prime is 25112050749109. The reversal of 25112050749081 is 18094705021152.

25112050749081 is a `hidden beast` number, since 2 + 5 + 1 + 1 + 20 + 507 + 49 + 0 + 81 = 666.

It is an interprime number because it is at equal distance from previous prime (25112050749053) and next prime (25112050749109).

It is not a de Polignac number, because 25112050749081 - 2¹¹ = 25112050747033 is a prime.

It is a super-2 number, since 2×25112050749081² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25112050749041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 451473490 + ... + 451529108.

It is an arithmetic number, because the mean of its divisors is an integer number (1512726600060).

Almost surely, 2^{25112050749081} is an apocalyptic number.

It is an amenable number.

25112050749081 is a deficient number, since it is larger than the sum of its proper divisors (11193387652359).

25112050749081 is a wasteful number, since it uses less digits than its factorization.

25112050749081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99637 (or 99634 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 45.

The spelling of 25112050749081 in words is "twenty-five trillion, one hundred twelve billion, fifty million, seven hundred forty-nine thousand, eighty-one".