52191855 has 24 divisors (see below), whose sum is σ = 92394432. Its totient is φ = 27242304.

The previous prime is 52191847. The next prime is 52191863. The reversal of 52191855 is 55819125.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (52191847) and next prime (52191863).

It is not a de Polignac number, because 52191855 - 2³ = 52191847 is a prime.

It is a congruent number.

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, 10224 + ... + 14453.

It is an arithmetic number, because the mean of its divisors is an integer number (3849768).

Almost surely, 2^52191855 is an apocalyptic number.

52191855 is a deficient number, since it is larger than the sum of its proper divisors (40202577).

52191855 is a wasteful number, since it uses less digits than its factorization.

52191855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24735 (or 24732 counting only the distinct ones).

The product of its digits is 18000, while the sum is 36.

The square root of 52191855 is about 7224.3930540911. The cubic root of 52191855 is about 373.7095913480.

The spelling of 52191855 in words is "fifty-two million, one hundred ninety-one thousand, eight hundred fifty-five".