53972497 has 12 divisors (see below), whose sum is σ = 56307636. Its totient is φ = 51715040.

The previous prime is 53972491. The next prime is 53972507. The reversal of 53972497 is 79427935.

53972497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 28206721 + 25765776 = 5311^2 + 5076^2 .

It is not a de Polignac number, because 53972497 - 2³ = 53972489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53972491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116847 + ... + 117307.

It is an arithmetic number, because the mean of its divisors is an integer number (4692303).

Almost surely, 2^53972497 is an apocalyptic number.

It is an amenable number.

53972497 is a deficient number, since it is larger than the sum of its proper divisors (2335139).

53972497 is an equidigital number, since it uses as much as digits as its factorization.

53972497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608 (or 561 counting only the distinct ones).

The product of its digits is 476280, while the sum is 46.

The square root of 53972497 is about 7346.5976478912. The cubic root of 53972497 is about 377.9121344256.

The spelling of 53972497 in words is "fifty-three million, nine hundred seventy-two thousand, four hundred ninety-seven".