53072406 has 48 divisors (see below), whose sum is σ = 118609920. Its totient is φ = 17141040.

The previous prime is 53072399. The next prime is 53072413. The reversal of 53072406 is 60427035.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (53072399) and next prime (53072413).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 53072406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147655 + ... + 148013.

It is an arithmetic number, because the mean of its divisors is an integer number (2471040).

Almost surely, 2^53072406 is an apocalyptic number.

53072406 is an abundant number, since it is smaller than the sum of its proper divisors (65537514).

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

53072406 is a wasteful number, since it uses less digits than its factorization.

53072406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601 (or 598 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 53072406 is about 7285.0810565154. The cubic root of 53072406 is about 375.7995526964.

The spelling of 53072406 in words is "fifty-three million, seventy-two thousand, four hundred six".