20032735625 has 40 divisors (see below), whose sum is σ = 28745948352. Its totient is φ = 13671000000.

The previous prime is 20032735607. The next prime is 20032735631. The reversal of 20032735625 is 52653723002.

It is not a de Polignac number, because 20032735625 - 2²² = 20028541321 is a prime.

It is a super-2 number, since 2×20032735625² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 912275 + ... + 933975.

Almost surely, 2^20032735625 is an apocalyptic number.

20032735625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20032735625 is a deficient number, since it is larger than the sum of its proper divisors (8713212727).

20032735625 is an equidigital number, since it uses as much as digits as its factorization.

20032735625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21939 (or 21924 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 35.

The spelling of 20032735625 in words is "twenty billion, thirty-two million, seven hundred thirty-five thousand, six hundred twenty-five".