3721533251 has 8 divisors (see below), whose sum is σ = 3735465984. Its totient is φ = 3707623240.

The previous prime is 3721533247. The next prime is 3721533253. The reversal of 3721533251 is 1523351273.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3721533251 - 2² = 3721533247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3721533253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366890 + ... + 376896.

It is an arithmetic number, because the mean of its divisors is an integer number (466933248).

Almost surely, 2^3721533251 is an apocalyptic number.

3721533251 is a deficient number, since it is larger than the sum of its proper divisors (13932733).

3721533251 is a wasteful number, since it uses less digits than its factorization.

3721533251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11361.

The product of its digits is 18900, while the sum is 32.

The square root of 3721533251 is about 61004.3707532501. The cubic root of 3721533251 is about 1549.6750273966.

The spelling of 3721533251 in words is "three billion, seven hundred twenty-one million, five hundred thirty-three thousand, two hundred fifty-one".