3251672521 has 4 divisors (see below), whose sum is σ = 3422813200. Its totient is φ = 3080531844.

The previous prime is 3251672471. The next prime is 3251672533. The reversal of 3251672521 is 1252761523.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3251672521 - 2²³ = 3243283913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3251672551) 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, 85570311 + ... + 85570348.

It is an arithmetic number, because the mean of its divisors is an integer number (855703300).

Almost surely, 2^3251672521 is an apocalyptic number.

It is an amenable number.

3251672521 is a deficient number, since it is larger than the sum of its proper divisors (171140679).

3251672521 is a wasteful number, since it uses less digits than its factorization.

3251672521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171140678.

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

The square root of 3251672521 is about 57023.4383477531. The cubic root of 3251672521 is about 1481.5020848280.

The spelling of 3251672521 in words is "three billion, two hundred fifty-one million, six hundred seventy-two thousand, five hundred twenty-one".