538372555 has 24 divisors (see below), whose sum is σ = 753740640. Its totient is φ = 368081280.

The previous prime is 538372487. The next prime is 538372577. The reversal of 538372555 is 555273835.

It is a de Polignac number, because none of the positive numbers 2^k-538372555 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84895 + ... + 91015.

It is an arithmetic number, because the mean of its divisors is an integer number (31405860).

Almost surely, 2^538372555 is an apocalyptic number.

538372555 is a deficient number, since it is larger than the sum of its proper divisors (215368085).

538372555 is a wasteful number, since it uses less digits than its factorization.

538372555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6499 (or 6492 counting only the distinct ones).

The product of its digits is 630000, while the sum is 43.

The square root of 538372555 is about 23202.8566129259. The cubic root of 538372555 is about 813.5063941099.

The spelling of 538372555 in words is "five hundred thirty-eight million, three hundred seventy-two thousand, five hundred fifty-five".