52130290 has 16 divisors (see below), whose sum is σ = 94666968. Its totient is φ = 20667136.

The previous prime is 52130261. The next prime is 52130291. The reversal of 52130290 is 9203125.

It can be written as a sum of positive squares in 4 ways, for example, as 28227969 + 23902321 = 5313^2 + 4889^2 .

It is not an unprimeable number, because it can be changed into a prime (52130291) 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, 21937 + ... + 24196.

Almost surely, 2^52130290 is an apocalyptic number.

52130290 is a deficient number, since it is larger than the sum of its proper divisors (42536678).

52130290 is a wasteful number, since it uses less digits than its factorization.

52130290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46253.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 52130290 is about 7220.1308852402. The cubic root of 52130290 is about 373.5625921443.

The spelling of 52130290 in words is "fifty-two million, one hundred thirty thousand, two hundred ninety".