53220551331 has 16 divisors (see below), whose sum is σ = 74700403200. Its totient is φ = 33610778208.

The previous prime is 53220551327. The next prime is 53220551333. The reversal of 53220551331 is 13315502235.

It is not a de Polignac number, because 53220551331 - 2² = 53220551327 is a prime.

It is a super-2 number, since 2×53220551331² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53220551333) 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, 1661590 + ... + 1693316.

It is an arithmetic number, because the mean of its divisors is an integer number (4668775200).

Almost surely, 2^53220551331 is an apocalyptic number.

53220551331 is a deficient number, since it is larger than the sum of its proper divisors (21479851869).

53220551331 is a wasteful number, since it uses less digits than its factorization.

53220551331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61178.

The product of its (nonzero) digits is 13500, while the sum is 30.

The spelling of 53220551331 in words is "fifty-three billion, two hundred twenty million, five hundred fifty-one thousand, three hundred thirty-one".