52164490 has 32 divisors (see below), whose sum is σ = 108679680. Its totient is φ = 17656704.

The previous prime is 52164439. The next prime is 52164491. The reversal of 52164490 is 9446125.

It is a super-2 number, since 2×52164490² = 5442268033920200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52164491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 814 + ... + 10246.

It is an arithmetic number, because the mean of its divisors is an integer number (3396240).

Almost surely, 2^52164490 is an apocalyptic number.

52164490 is an abundant number, since it is smaller than the sum of its proper divisors (56515190).

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

52164490 is a wasteful number, since it uses less digits than its factorization.

52164490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9526.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 52164490 is about 7222.4988750432. The cubic root of 52164490 is about 373.6442660157.

The spelling of 52164490 in words is "fifty-two million, one hundred sixty-four thousand, four hundred ninety".