54102420025 has 12 divisors (see below), whose sum is σ = 67751231724. Its totient is φ = 42853400000.

The previous prime is 54102420019. The next prime is 54102420041. The reversal of 54102420025 is 52002420145.

It can be written as a sum of positive squares in 6 ways, for example, as 6676033849 + 47426386176 = 81707^2 + 217776^2 .

It is not a de Polignac number, because 54102420025 - 2³ = 54102420017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10710826 + ... + 10715875.

It is an arithmetic number, because the mean of its divisors is an integer number (5645935977).

Almost surely, 2^54102420025 is an apocalyptic number.

It is an amenable number.

54102420025 is a deficient number, since it is larger than the sum of its proper divisors (13648811699).

54102420025 is a wasteful number, since it uses less digits than its factorization.

54102420025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21426812 (or 21426807 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The spelling of 54102420025 in words is "fifty-four billion, one hundred two million, four hundred twenty thousand, twenty-five".