52631578 has 16 divisors (see below), whose sum is σ = 82114560. Its totient is φ = 25270000.

The previous prime is 52631573. The next prime is 52631591. The reversal of 52631578 is 87513625.

It is not an unprimeable number, because it can be changed into a prime (52631573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8703 + ... + 13453.

It is an arithmetic number, because the mean of its divisors is an integer number (5132160).

Almost surely, 2^52631578 is an apocalyptic number.

52631578 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

52631578 is a deficient number, since it is larger than the sum of its proper divisors (29482982).

52631578 is a wasteful number, since it uses less digits than its factorization.

52631578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4973.

The product of its digits is 50400, while the sum is 37.

The square root of 52631578 is about 7254.7624358073. The cubic root of 52631578 is about 374.7561745358.

The spelling of 52631578 in words is "fifty-two million, six hundred thirty-one thousand, five hundred seventy-eight".