53072415 has 108 divisors (see below), whose sum is σ = 110669832. Its totient is φ = 24377760.

The previous prime is 53072413. The next prime is 53072443. The reversal of 53072415 is 51427035.

It is a happy number.

It is not a de Polignac number, because 53072415 - 2¹ = 53072413 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53072413) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 2793276 + ... + 2793294.

Almost surely, 2^53072415 is an apocalyptic number.

53072415 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

53072415 is an abundant number, since it is smaller than the sum of its proper divisors (57597417).

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

53072415 is a wasteful number, since it uses less digits than its factorization.

53072415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80 (or 38 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 53072415 is about 7285.0816742162. The cubic root of 53072415 is about 375.7995739390.

The spelling of 53072415 in words is "fifty-three million, seventy-two thousand, four hundred fifteen".