52531478 has 8 divisors (see below), whose sum is σ = 78871968. Its totient is φ = 26240824.

The previous prime is 52531459. The next prime is 52531487. The reversal of 52531478 is 87413525.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9701 + ... + 14112.

It is an arithmetic number, because the mean of its divisors is an integer number (9858996).

Almost surely, 2^52531478 is an apocalyptic number.

52531478 is a deficient number, since it is larger than the sum of its proper divisors (26340490).

52531478 is a wasteful number, since it uses less digits than its factorization.

52531478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24918.

The product of its digits is 33600, while the sum is 35.

The square root of 52531478 is about 7247.8602359593. The cubic root of 52531478 is about 374.5184408297.

The spelling of 52531478 in words is "fifty-two million, five hundred thirty-one thousand, four hundred seventy-eight".