54137565 has 20 divisors (see below), whose sum is σ = 97047324. Its totient is φ = 28873152.

The previous prime is 54137533. The next prime is 54137579. The reversal of 54137565 is 56573145.

It can be written as a sum of positive squares in 2 ways, for example, as 14220441 + 39917124 = 3771^2 + 6318^2 .

It is not a de Polignac number, because 54137565 - 2⁵ = 54137533 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 66432 + ... + 67241.

Almost surely, 2^54137565 is an apocalyptic number.

It is an amenable number.

54137565 is a deficient number, since it is larger than the sum of its proper divisors (42909759).

54137565 is a wasteful number, since it uses less digits than its factorization.

54137565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133690 (or 133681 counting only the distinct ones).

The product of its digits is 63000, while the sum is 36.

The square root of 54137565 is about 7357.8233873884. The cubic root of 54137565 is about 378.2970076883.

The spelling of 54137565 in words is "fifty-four million, one hundred thirty-seven thousand, five hundred sixty-five".