3125565251 has 4 divisors (see below), whose sum is σ = 3125715600. Its totient is φ = 3125414904.

The previous prime is 3125565217. The next prime is 3125565257. The reversal of 3125565251 is 1525655213.

3125565251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1525655213 = 131 ⋅11646223.

It is a cyclic number.

It is not a de Polignac number, because 3125565251 - 2⁶ = 3125565187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3125565257) 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, 37796 + ... + 87633.

It is an arithmetic number, because the mean of its divisors is an integer number (781428900).

Almost surely, 2^3125565251 is an apocalyptic number.

3125565251 is a deficient number, since it is larger than the sum of its proper divisors (150349).

3125565251 is a wasteful number, since it uses less digits than its factorization.

3125565251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150348.

The product of its digits is 45000, while the sum is 35.

The square root of 3125565251 is about 55906.7549675350. The cubic root of 3125565251 is about 1462.0970133362.

The spelling of 3125565251 in words is "three billion, one hundred twenty-five million, five hundred sixty-five thousand, two hundred fifty-one".