55266531 has 8 divisors (see below), whose sum is σ = 73726224. Its totient is φ = 36825600.

The previous prime is 55266529. The next prime is 55266551. The reversal of 55266531 is 13566255.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55266531 - 2¹ = 55266529 is a prime.

It is a super-2 number, since 2×55266531² = 6108778897547922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55266492 and 55266501.

It is not an unprimeable number, because it can be changed into a prime (55266551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5115 + ... + 11691.

It is an arithmetic number, because the mean of its divisors is an integer number (9215778).

Almost surely, 2^55266531 is an apocalyptic number.

55266531 is a deficient number, since it is larger than the sum of its proper divisors (18459693).

55266531 is a wasteful number, since it uses less digits than its factorization.

55266531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9381.

The product of its digits is 27000, while the sum is 33.

The square root of 55266531 is about 7434.1462858892. The cubic root of 55266531 is about 380.9085623189.

The spelling of 55266531 in words is "fifty-five million, two hundred sixty-six thousand, five hundred thirty-one".