53615478 has 32 divisors (see below), whose sum is σ = 122966784. Its totient is φ = 15266592.

The previous prime is 53615459. The next prime is 53615503. The reversal of 53615478 is 87451635.

It is a congruent number.

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, 11301 + ... + 15327.

It is an arithmetic number, because the mean of its divisors is an integer number (3842712).

Almost surely, 2^53615478 is an apocalyptic number.

53615478 is an abundant number, since it is smaller than the sum of its proper divisors (69351306).

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

53615478 is a wasteful number, since it uses less digits than its factorization.

53615478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4356.

The product of its digits is 100800, while the sum is 39.

The square root of 53615478 is about 7322.2590776344. The cubic root of 53615478 is about 377.0770152261.

The spelling of 53615478 in words is "fifty-three million, six hundred fifteen thousand, four hundred seventy-eight".