53520402 has 32 divisors (see below), whose sum is σ = 120290688. Its totient is φ = 15751296.

The previous prime is 53520391. The next prime is 53520419. The reversal of 53520402 is 20402535.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13123 + ... + 16710.

It is an arithmetic number, because the mean of its divisors is an integer number (3759084).

Almost surely, 2^53520402 is an apocalyptic number.

53520402 is an abundant number, since it is smaller than the sum of its proper divisors (66770286).

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

53520402 is a wasteful number, since it uses less digits than its factorization.

53520402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29874.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 53520402 is about 7315.7639382364. The cubic root of 53520402 is about 376.8539938898.

Adding to 53520402 its reverse (20402535), we get a palindrome (73922937).

The spelling of 53520402 in words is "fifty-three million, five hundred twenty thousand, four hundred two".