53055531 has 24 divisors (see below), whose sum is σ = 78773760. Its totient is φ = 34398000.

The previous prime is 53055523. The next prime is 53055551. The reversal of 53055531 is 13555035.

It is not a de Polignac number, because 53055531 - 2³ = 53055523 is a prime.

It is a super-2 number, since 2×53055531² = 5629778739383922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53055495 and 53055504.

It is not an unprimeable number, because it can be changed into a prime (53055551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49956 + ... + 51006.

It is an arithmetic number, because the mean of its divisors is an integer number (3282240).

Almost surely, 2^53055531 is an apocalyptic number.

53055531 is a deficient number, since it is larger than the sum of its proper divisors (25718229).

53055531 is a wasteful number, since it uses less digits than its factorization.

53055531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207 (or 1204 counting only the distinct ones).

The product of its (nonzero) digits is 5625, while the sum is 27.

The square root of 53055531 is about 7283.9227755379. The cubic root of 53055531 is about 375.7597185014.

The spelling of 53055531 in words is "fifty-three million, fifty-five thousand, five hundred thirty-one".