52684690 has 16 divisors (see below), whose sum is σ = 95175000. Its totient is φ = 20997760.

The previous prime is 52684673. The next prime is 52684711. The reversal of 52684690 is 9648625.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 48066489 + 4618201 = 6933^2 + 2149^2 .

It is a super-2 number, since 2×52684690² = 5551353120792200, which contains 22 as substring.

It is a plaindrome in base 12.

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, 6565 + ... + 12184.

Almost surely, 2^52684690 is an apocalyptic number.

52684690 is a deficient number, since it is larger than the sum of its proper divisors (42490310).

52684690 is a wasteful number, since it uses less digits than its factorization.

52684690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19037.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 52684690 is about 7258.4220048162. The cubic root of 52684690 is about 374.8821911416.

The spelling of 52684690 in words is "fifty-two million, six hundred eighty-four thousand, six hundred ninety".