53221612235 has 16 divisors (see below), whose sum is σ = 70247738592. Its totient is φ = 38706622240.

The previous prime is 53221612217. The next prime is 53221612303.

53221612235 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 53221612235 - 2⁸ = 53221611979 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3991964 + ... + 4005273.

It is an arithmetic number, because the mean of its divisors is an integer number (4390483662).

Almost surely, 2^53221612235 is an apocalyptic number.

53221612235 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

53221612235 is a deficient number, since it is larger than the sum of its proper divisors (17026126357).

53221612235 is an equidigital number, since it uses as much as digits as its factorization.

53221612235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7997275 (or 7997253 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The spelling of 53221612235 in words is "fifty-three billion, two hundred twenty-one million, six hundred twelve thousand, two hundred thirty-five".