20574165025 has 24 divisors (see below), whose sum is σ = 25778975040. Its totient is φ = 16287311040.

The previous prime is 20574164993. The next prime is 20574165049. The reversal of 20574165025 is 52056147502.

It is not a de Polignac number, because 20574165025 - 2⁵ = 20574164993 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5155731 + ... + 5159719.

It is an arithmetic number, because the mean of its divisors is an integer number (1074123960).

Almost surely, 2^20574165025 is an apocalyptic number.

20574165025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20574165025 is a deficient number, since it is larger than the sum of its proper divisors (5204810015).

20574165025 is a wasteful number, since it uses less digits than its factorization.

20574165025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6105 (or 6100 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 37.

The spelling of 20574165025 in words is "twenty billion, five hundred seventy-four million, one hundred sixty-five thousand, twenty-five".