20125452512 has 48 divisors (see below), whose sum is σ = 43236435312. Its totient is φ = 9145297920.

The previous prime is 20125452463. The next prime is 20125452527. The reversal of 20125452512 is 21525452102.

It is a happy number.

It is a super-2 number, since 2×20125452512² (a number of 21 digits) contains 22 as substring.

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, 1744748 + ... + 1756244.

It is an arithmetic number, because the mean of its divisors is an integer number (900759069).

Almost surely, 2^20125452512 is an apocalyptic number.

20125452512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20125452512 is an abundant number, since it is smaller than the sum of its proper divisors (23110982800).

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

20125452512 is a wasteful number, since it uses less digits than its factorization.

20125452512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16491 (or 16483 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

The spelling of 20125452512 in words is "twenty billion, one hundred twenty-five million, four hundred fifty-two thousand, five hundred twelve".