20210512525 has 72 divisors (see below), whose sum is σ = 30234207744. Its totient is φ = 13123219200.

The previous prime is 20210512513. The next prime is 20210512549. The reversal of 20210512525 is 52521501202.

It is not a de Polignac number, because 20210512525 - 2⁷ = 20210512397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20210512525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7798980 + ... + 7801570.

It is an arithmetic number, because the mean of its divisors is an integer number (419919552).

Almost surely, 2^20210512525 is an apocalyptic number.

20210512525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20210512525 is a deficient number, since it is larger than the sum of its proper divisors (10023695219).

20210512525 is a wasteful number, since it uses less digits than its factorization.

20210512525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2719 (or 2685 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The spelling of 20210512525 in words is "twenty billion, two hundred ten million, five hundred twelve thousand, five hundred twenty-five".