53263657 has 4 divisors (see below), whose sum is σ = 53390596. Its totient is φ = 53136720.

The previous prime is 53263649. The next prime is 53263667. The reversal of 53263657 is 75636235.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 104976 + 53158681 = 324^2 + 7291^2 .

It is a cyclic number.

It is not a de Polignac number, because 53263657 - 2³ = 53263649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53263667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62838 + ... + 63679.

It is an arithmetic number, because the mean of its divisors is an integer number (13347649).

Almost surely, 2^53263657 is an apocalyptic number.

It is an amenable number.

53263657 is a deficient number, since it is larger than the sum of its proper divisors (126939).

53263657 is a wasteful number, since it uses less digits than its factorization.

53263657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126938.

The product of its digits is 113400, while the sum is 37.

The square root of 53263657 is about 7298.1954618933. The cubic root of 53263657 is about 376.2504202672.

The spelling of 53263657 in words is "fifty-three million, two hundred sixty-three thousand, six hundred fifty-seven".