25000064999976 has 32 divisors (see below), whose sum is σ = 68181995455200. Its totient is φ = 7575777272640.

The previous prime is 25000064999971. The next prime is 25000065000077. The reversal of 25000064999976 is 67999946000052.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is not an unprimeable number, because it can be changed into a prime (25000064999971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47348607691 + ... + 47348608218.

It is an arithmetic number, because the mean of its divisors is an integer number (2130687357975).

Almost surely, 2^{25000064999976} is an apocalyptic number.

It is an amenable number.

25000064999976 is an abundant number, since it is smaller than the sum of its proper divisors (43181930455224).

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

25000064999976 is a wasteful number, since it uses less digits than its factorization.

25000064999976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94697215929 (or 94697215925 counting only the distinct ones).

The product of its (nonzero) digits is 66134880, while the sum is 66.

The spelling of 25000064999976 in words is "twenty-five trillion, sixty-four million, nine hundred ninety-nine thousand, nine hundred seventy-six".