52610220 has 72 divisors (see below), whose sum is σ = 171867696. Its totient is φ = 12949632.

The previous prime is 52610203. The next prime is 52610273. The reversal of 52610220 is 2201625.

52610220 is a `hidden beast` number, since 52 + 610 + 2 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 52610193 and 52610202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8902 + ... + 13581.

Almost surely, 2^52610220 is an apocalyptic number.

It is an amenable number.

52610220 is an abundant number, since it is smaller than the sum of its proper divisors (119257476).

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

52610220 is a wasteful number, since it uses less digits than its factorization.

52610220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22511 (or 22506 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 52610220 is about 7253.2902878625. The cubic root of 52610220 is about 374.7054754079.

Adding to 52610220 its reverse (2201625), we get a palindrome (54811845).

The spelling of 52610220 in words is "fifty-two million, six hundred ten thousand, two hundred twenty".