20534727625 has 16 divisors (see below), whose sum is σ = 25717940352. Its totient is φ = 16369705200.

The previous prime is 20534727617. The next prime is 20534727637. The reversal of 20534727625 is 52672743502.

It is not a de Polignac number, because 20534727625 - 2³ = 20534727617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254869 + ... + 325618.

It is an arithmetic number, because the mean of its divisors is an integer number (1607371272).

Almost surely, 2^20534727625 is an apocalyptic number.

20534727625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20534727625 is a deficient number, since it is larger than the sum of its proper divisors (5183212727).

20534727625 is an equidigital number, since it uses as much as digits as its factorization.

20534727625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580785 (or 580775 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 43.

The spelling of 20534727625 in words is "twenty billion, five hundred thirty-four million, seven hundred twenty-seven thousand, six hundred twenty-five".