25156070464 has 56 divisors (see below), whose sum is σ = 58890741248. Its totient is φ = 10433387520.

The previous prime is 25156070449. The next prime is 25156070473. The reversal of 25156070464 is 46407065152.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-3 number, since 3×25156070464³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 891789 + ... + 919564.

Almost surely, 2^25156070464 is an apocalyptic number.

It is an amenable number.

25156070464 is an abundant number, since it is smaller than the sum of its proper divisors (33734670784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25156070464 is a wasteful number, since it uses less digits than its factorization.

25156070464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811403 (or 1811393 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 40.

The spelling of 25156070464 in words is "twenty-five billion, one hundred fifty-six million, seventy thousand, four hundred sixty-four".