3625445231 has 4 divisors (see below), whose sum is σ = 3693849912. Its totient is φ = 3557040552.

The previous prime is 3625445227. The next prime is 3625445261. The reversal of 3625445231 is 1325445263.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1325445263 = 19 ⋅69760277.

It is a cyclic number.

It is not a de Polignac number, because 3625445231 - 2² = 3625445227 is a prime.

It is a super-2 number, since 2×3625445231² = 26287706245961286722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3625445191 and 3625445200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3625445261) 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, 34202261 + ... + 34202366.

It is an arithmetic number, because the mean of its divisors is an integer number (923462478).

Almost surely, 2^3625445231 is an apocalyptic number.

3625445231 is a deficient number, since it is larger than the sum of its proper divisors (68404681).

3625445231 is an equidigital number, since it uses as much as digits as its factorization.

3625445231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68404680.

The product of its digits is 86400, while the sum is 35.

The square root of 3625445231 is about 60211.6702226404. The cubic root of 3625445231 is about 1536.2213017944.

The spelling of 3625445231 in words is "three billion, six hundred twenty-five million, four hundred forty-five thousand, two hundred thirty-one".