52155220460 has 24 divisors (see below), whose sum is σ = 125172529440. Its totient is φ = 17881789824.

The previous prime is 52155220451. The next prime is 52155220483. The reversal of 52155220460 is 6402255125.

It is a super-2 number, since 2×52155220460² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186268505 + ... + 186268784.

It is an arithmetic number, because the mean of its divisors is an integer number (5215522060).

Almost surely, 2^52155220460 is an apocalyptic number.

It is an amenable number.

52155220460 is an abundant number, since it is smaller than the sum of its proper divisors (73017308980).

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

52155220460 is a wasteful number, since it uses less digits than its factorization.

52155220460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372537305 (or 372537303 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 52155220460 its reverse (6402255125), we get a palindrome (58557475585).

The spelling of 52155220460 in words is "fifty-two billion, one hundred fifty-five million, two hundred twenty thousand, four hundred sixty".