52215670 has 32 divisors (see below), whose sum is σ = 107176608. Its totient is φ = 18144768.

The previous prime is 52215661. The next prime is 52215671. The reversal of 52215670 is 7651225.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52215671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9604 + ... + 14023.

It is an arithmetic number, because the mean of its divisors is an integer number (3349269).

Almost surely, 2^52215670 is an apocalyptic number.

52215670 is an abundant number, since it is smaller than the sum of its proper divisors (54960938).

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

52215670 is a wasteful number, since it uses less digits than its factorization.

52215670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23664.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 52215670 is about 7226.0411014607. The cubic root of 52215670 is about 373.7664235912.

Adding to 52215670 its reverse (7651225), we get a palindrome (59866895).

The spelling of 52215670 in words is "fifty-two million, two hundred fifteen thousand, six hundred seventy".