53000402 has 32 divisors (see below), whose sum is σ = 98660352. Its totient is φ = 20793024.

The previous prime is 53000393. The next prime is 53000449. The reversal of 53000402 is 20400035.

It is a super-2 number, since 2×53000402² = 5618085224323208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 21968 + ... + 24260.

It is an arithmetic number, because the mean of its divisors is an integer number (3083136).

Almost surely, 2^53000402 is an apocalyptic number.

53000402 is a deficient number, since it is larger than the sum of its proper divisors (45659950).

53000402 is a wasteful number, since it uses less digits than its factorization.

53000402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2442.

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 53000402 is about 7280.1374987015. The cubic root of 53000402 is about 375.6295251221.

Adding to 53000402 its reverse (20400035), we get a palindrome (73400437).

The spelling of 53000402 in words is "fifty-three million, four hundred two", and thus it is an aban number.