20125461053775 has 144 divisors (see below), whose sum is σ = 42533609103360. Its totient is φ = 8302775846400.

The previous prime is 20125461053767. The next prime is 20125461053807. The reversal of 20125461053775 is 57735016452102.

It is not a de Polignac number, because 20125461053775 - 2³ = 20125461053767 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 3721266 + ... + 7355184.

It is an arithmetic number, because the mean of its divisors is an integer number (295372285440).

Almost surely, 2^{20125461053775} is an apocalyptic number.

20125461053775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20125461053775 is an abundant number, since it is smaller than the sum of its proper divisors (22408148049585).

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

20125461053775 is a wasteful number, since it uses less digits than its factorization.

20125461053775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3634094 (or 3634082 counting only the distinct ones).

The product of its (nonzero) digits is 1764000, while the sum is 48.

The spelling of 20125461053775 in words is "twenty trillion, one hundred twenty-five billion, four hundred sixty-one million, fifty-three thousand, seven hundred seventy-five".