52621130 has 16 divisors (see below), whose sum is σ = 96132960. Its totient is φ = 20734032.

The previous prime is 52621111. The next prime is 52621133. The reversal of 52621130 is 3112625.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52621133) 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, 38600 + ... + 39939.

It is an arithmetic number, because the mean of its divisors is an integer number (6008310).

Almost surely, 2^52621130 is an apocalyptic number.

52621130 is a deficient number, since it is larger than the sum of its proper divisors (43511830).

52621130 is a wasteful number, since it uses less digits than its factorization.

52621130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78613.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 52621130 is about 7254.0423213543. The cubic root of 52621130 is about 374.7313750284.

Adding to 52621130 its reverse (3112625), we get a palindrome (55733755).

The spelling of 52621130 in words is "fifty-two million, six hundred twenty-one thousand, one hundred thirty".