20725162962625 has 32 divisors (see below), whose sum is σ = 28265270252544. Its totient is φ = 15046722432000.

The previous prime is 20725162962617. The next prime is 20725162962631. The reversal of 20725162962625 is 52626926152702.

It is not a de Polignac number, because 20725162962625 - 2³ = 20725162962617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12268017 + ... + 13854766.

It is an arithmetic number, because the mean of its divisors is an integer number (883289695392).

Almost surely, 2^{20725162962625} is an apocalyptic number.

20725162962625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20725162962625 is a deficient number, since it is larger than the sum of its proper divisors (7540107289919).

20725162962625 is a wasteful number, since it uses less digits than its factorization.

20725162962625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26123386 (or 26123376 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 55.

The spelling of 20725162962625 in words is "twenty trillion, seven hundred twenty-five billion, one hundred sixty-two million, nine hundred sixty-two thousand, six hundred twenty-five".