20425885692504 has 32 divisors (see below), whose sum is σ = 51071760990720. Its totient is φ = 6807688996256.

The previous prime is 20425885692473. The next prime is 20425885692533. The reversal of 20425885692504 is 40529658852402.

It is a super-2 number, since 2×20425885692504² (a number of 27 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, 58545444 + ... + 58893299.

It is an arithmetic number, because the mean of its divisors is an integer number (1595992530960).

Almost surely, 2^{20425885692504} is an apocalyptic number.

20425885692504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20425885692504 is an abundant number, since it is smaller than the sum of its proper divisors (30645875298216).

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

20425885692504 is a wasteful number, since it uses less digits than its factorization.

20425885692504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117445999 (or 117445995 counting only the distinct ones).

The product of its (nonzero) digits is 55296000, while the sum is 60.

The spelling of 20425885692504 in words is "twenty trillion, four hundred twenty-five billion, eight hundred eighty-five million, six hundred ninety-two thousand, five hundred four".