53215476 has 24 divisors (see below), whose sum is σ = 124287744. Its totient is φ = 17721600.

The previous prime is 53215453. The next prime is 53215489. The reversal of 53215476 is 67451235.

It is a congruent number.

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, 22276 + ... + 24548.

It is an arithmetic number, because the mean of its divisors is an integer number (5178656).

Almost surely, 2^53215476 is an apocalyptic number.

It is an amenable number.

53215476 is an abundant number, since it is smaller than the sum of its proper divisors (71072268).

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

53215476 is a wasteful number, since it uses less digits than its factorization.

53215476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4231 (or 4229 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 53215476 is about 7294.8938306188. The cubic root of 53215476 is about 376.1369370696.

The spelling of 53215476 in words is "fifty-three million, two hundred fifteen thousand, four hundred seventy-six".