53115426 has 96 divisors (see below), whose sum is σ = 147009408. Its totient is φ = 13996800.

The previous prime is 53115409. The next prime is 53115427. The reversal of 53115426 is 62451135.

It is a super-2 number, since 2×53115426² = 5642496958322952, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 53115426.

It is not an unprimeable number, because it can be changed into a prime (53115427) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43626 + ... + 44826.

It is an arithmetic number, because the mean of its divisors is an integer number (1531348).

Almost surely, 2^53115426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53115426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73504704).

53115426 is an abundant number, since it is smaller than the sum of its proper divisors (93893982).

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

53115426 is a wasteful number, since it uses less digits than its factorization.

53115426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238 (or 1226 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 53115426 is about 7288.0330679821. The cubic root of 53115426 is about 375.9010651501.

The spelling of 53115426 in words is "fifty-three million, one hundred fifteen thousand, four hundred twenty-six".