3167225521 has 4 divisors (see below), whose sum is σ = 3174749044. Its totient is φ = 3159702000.

The previous prime is 3167225483. The next prime is 3167225563. The reversal of 3167225521 is 1255227613.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1255227613 = 32771 ⋅38303.

It can be written as a sum of positive squares in 2 ways, for example, as 870899121 + 2296326400 = 29511^2 + 47920^2 .

It is a cyclic number.

It is not a de Polignac number, because 3167225521 - 2⁷ = 3167225393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3167225021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3761130 + ... + 3761971.

It is an arithmetic number, because the mean of its divisors is an integer number (793687261).

Almost surely, 2^3167225521 is an apocalyptic number.

It is an amenable number.

3167225521 is a deficient number, since it is larger than the sum of its proper divisors (7523523).

3167225521 is an equidigital number, since it uses as much as digits as its factorization.

3167225521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7523522.

The product of its digits is 25200, while the sum is 34.

The square root of 3167225521 is about 56278.1087191103. The cubic root of 3167225521 is about 1468.5643998919.

The spelling of 3167225521 in words is "three billion, one hundred sixty-seven million, two hundred twenty-five thousand, five hundred twenty-one".