53665465 has 16 divisors (see below), whose sum is σ = 74032128. Its totient is φ = 36582336.

The previous prime is 53665427. The next prime is 53665483. The reversal of 53665465 is 56456635.

It is a happy number.

It is not a de Polignac number, because 53665465 - 2¹⁹ = 53141177 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1624 + ... + 10486.

It is an arithmetic number, because the mean of its divisors is an integer number (4627008).

Almost surely, 2^53665465 is an apocalyptic number.

It is an amenable number.

53665465 is a deficient number, since it is larger than the sum of its proper divisors (20366663).

53665465 is a wasteful number, since it uses less digits than its factorization.

53665465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9048.

The product of its digits is 324000, while the sum is 40.

The square root of 53665465 is about 7325.6716415630. The cubic root of 53665465 is about 377.1941648174.

The spelling of 53665465 in words is "fifty-three million, six hundred sixty-five thousand, four hundred sixty-five".