52696990 has 16 divisors (see below), whose sum is σ = 94938480. Its totient is φ = 21060160.

The previous prime is 52696961. The next prime is 52696997. The reversal of 52696990 is 9969625.

52696990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 52696990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52696997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17946 + ... + 20674.

It is an arithmetic number, because the mean of its divisors is an integer number (5933655).

Almost surely, 2^52696990 is an apocalyptic number.

52696990 is a deficient number, since it is larger than the sum of its proper divisors (42241490).

52696990 is a wasteful number, since it uses less digits than its factorization.

52696990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4667.

The product of its (nonzero) digits is 262440, while the sum is 46.

The square root of 52696990 is about 7259.2692469697. The cubic root of 52696990 is about 374.9113627545.

The spelling of 52696990 in words is "fifty-two million, six hundred ninety-six thousand, nine hundred ninety".