52215394 has 32 divisors (see below), whose sum is σ = 98006400. Its totient is φ = 20269440.

The previous prime is 52215343. The next prime is 52215409. The reversal of 52215394 is 49351225.

52215394 is nontrivially palindromic in base 13.

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, 62572 + ... + 63400.

It is an arithmetic number, because the mean of its divisors is an integer number (3062700).

Almost surely, 2^52215394 is an apocalyptic number.

52215394 is a deficient number, since it is larger than the sum of its proper divisors (45791006).

52215394 is a wasteful number, since it uses less digits than its factorization.

52215394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258.

The product of its digits is 10800, while the sum is 31.

The square root of 52215394 is about 7226.0220038414. The cubic root of 52215394 is about 373.7657650423.

The spelling of 52215394 in words is "fifty-two million, two hundred fifteen thousand, three hundred ninety-four".