53657701 has 6 divisors (see below), whose sum is σ = 54408210. Its totient is φ = 52917408.

The previous prime is 53657693. The next prime is 53657717. The reversal of 53657701 is 10775635.

It can be written as a sum of positive squares in 3 ways, for example, as 5688225 + 47969476 = 2385^2 + 6926^2 .

It is not a de Polignac number, because 53657701 - 2³ = 53657693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53657761) 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 5 ways as a sum of consecutive naturals, for example, 295 + ... + 10363.

It is an arithmetic number, because the mean of its divisors is an integer number (9068035).

Almost surely, 2^53657701 is an apocalyptic number.

It is an amenable number.

53657701 is a deficient number, since it is larger than the sum of its proper divisors (750509).

53657701 is an equidigital number, since it uses as much as digits as its factorization.

53657701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10215 (or 10142 counting only the distinct ones).

The product of its (nonzero) digits is 22050, while the sum is 34.

The square root of 53657701 is about 7325.1417051140. The cubic root of 53657701 is about 377.1759738714.

The spelling of 53657701 in words is "fifty-three million, six hundred fifty-seven thousand, seven hundred one".