53665534 has 16 divisors (see below), whose sum is σ = 86909760. Its totient is φ = 24706080.

The previous prime is 53665523. The next prime is 53665567. The reversal of 53665534 is 43556635.

It is a junction number, because it is equal to n+sod(n) for n = 53665493 and 53665502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8812 + ... + 13600.

It is an arithmetic number, because the mean of its divisors is an integer number (5431860).

Almost surely, 2^53665534 is an apocalyptic number.

53665534 is a deficient number, since it is larger than the sum of its proper divisors (33244226).

53665534 is a wasteful number, since it uses less digits than its factorization.

53665534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5235.

The product of its digits is 162000, while the sum is 37.

The square root of 53665534 is about 7325.6763510273. The cubic root of 53665534 is about 377.1943264756.

The spelling of 53665534 in words is "fifty-three million, six hundred sixty-five thousand, five hundred thirty-four".