53369397 has 6 divisors (see below), whose sum is σ = 77089142. Its totient is φ = 35579592.

The previous prime is 53369389. The next prime is 53369399. The reversal of 53369397 is 79396335.

It can be written as a sum of positive squares in only one way, i.e., 36796356 + 16573041 = 6066^2 + 4071^2 .

It is not a de Polignac number, because 53369397 - 2³ = 53369389 is a prime.

It is a super-2 number, since 2×53369397² = 5696585072287218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53369399) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2964958 + ... + 2964975.

Almost surely, 2^53369397 is an apocalyptic number.

It is an amenable number.

53369397 is a deficient number, since it is larger than the sum of its proper divisors (23719745).

53369397 is a wasteful number, since it uses less digits than its factorization.

53369397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5929939 (or 5929936 counting only the distinct ones).

The product of its digits is 459270, while the sum is 45.

The square root of 53369397 is about 7305.4361266115. The cubic root of 53369397 is about 376.4992354603.

The spelling of 53369397 in words is "fifty-three million, three hundred sixty-nine thousand, three hundred ninety-seven".