20251415512 has 32 divisors (see below), whose sum is σ = 40253738400. Its totient is φ = 9518529024.

The previous prime is 20251415491. The next prime is 20251415573. The reversal of 20251415512 is 21551415202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22933 + ... + 202555.

It is an arithmetic number, because the mean of its divisors is an integer number (1257929325).

Almost surely, 2^20251415512 is an apocalyptic number.

It is an amenable number.

20251415512 is a deficient number, since it is larger than the sum of its proper divisors (20002322888).

20251415512 is a wasteful number, since it uses less digits than its factorization.

20251415512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180475 (or 180471 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

The spelling of 20251415512 in words is "twenty billion, two hundred fifty-one million, four hundred fifteen thousand, five hundred twelve".