53120424 has 32 divisors (see below), whose sum is σ = 151773120. Its totient is φ = 15177216.

The previous prime is 53120399. The next prime is 53120449. The reversal of 53120424 is 42402135.

It is an interprime number because it is at equal distance from previous prime (53120399) and next prime (53120449).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 53120424.

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, 157929 + ... + 158264.

It is an arithmetic number, because the mean of its divisors is an integer number (4742910).

Almost surely, 2^53120424 is an apocalyptic number.

It is an amenable number.

53120424 is an abundant number, since it is smaller than the sum of its proper divisors (98652696).

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

53120424 is a wasteful number, since it uses less digits than its factorization.

53120424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316209 (or 316205 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 53120424 is about 7288.3759507863. The cubic root of 53120424 is about 375.9128551625.

Adding to 53120424 its reverse (42402135), we get a palindrome (95522559).

The spelling of 53120424 in words is "fifty-three million, one hundred twenty thousand, four hundred twenty-four".