52665537 has 16 divisors (see below), whose sum is σ = 73212480. Its totient is φ = 33633600.

The previous prime is 52665533. The next prime is 52665539. The reversal of 52665537 is 73556625.

It is not a de Polignac number, because 52665537 - 2² = 52665533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52665495 and 52665504.

It is not an unprimeable number, because it can be changed into a prime (52665533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9087 + ... + 13707.

It is an arithmetic number, because the mean of its divisors is an integer number (4575780).

Almost surely, 2^52665537 is an apocalyptic number.

It is an amenable number.

52665537 is a deficient number, since it is larger than the sum of its proper divisors (20546943).

52665537 is a wasteful number, since it uses less digits than its factorization.

52665537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4784.

The product of its digits is 189000, while the sum is 39.

The square root of 52665537 is about 7257.1025209790. The cubic root of 52665537 is about 374.8367573930.

The spelling of 52665537 in words is "fifty-two million, six hundred sixty-five thousand, five hundred thirty-seven".