53536665 has 72 divisors (see below), whose sum is σ = 108148608. Its totient is φ = 22538880.

The previous prime is 53536657. The next prime is 53536673. The reversal of 53536665 is 56663535.

It is an interprime number because it is at equal distance from previous prime (53536657) and next prime (53536673).

It is not a de Polignac number, because 53536665 - 2³ = 53536657 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 124000 + ... + 124430.

It is an arithmetic number, because the mean of its divisors is an integer number (1502064).

Almost surely, 2^53536665 is an apocalyptic number.

It is an amenable number.

53536665 is an abundant number, since it is smaller than the sum of its proper divisors (54611943).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53536665 is a wasteful number, since it uses less digits than its factorization.

53536665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479 (or 459 counting only the distinct ones).

The product of its digits is 243000, while the sum is 39.

The square root of 53536665 is about 7316.8753576920. The cubic root of 53536665 is about 376.8921609912.

The spelling of 53536665 in words is "fifty-three million, five hundred thirty-six thousand, six hundred sixty-five".