3125513247 has 24 divisors (see below), whose sum is σ = 4296370176. Its totient is φ = 2021048928.

The previous prime is 3125513233. The next prime is 3125513269. The reversal of 3125513247 is 7423155213.

It is not a de Polignac number, because 3125513247 - 2⁴ = 3125513231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3125513647) 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 23 ways as a sum of consecutive naturals, for example, 1571988 + ... + 1573974.

It is an arithmetic number, because the mean of its divisors is an integer number (179015424).

Almost surely, 2^3125513247 is an apocalyptic number.

3125513247 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

3125513247 is a deficient number, since it is larger than the sum of its proper divisors (1170856929).

3125513247 is a wasteful number, since it uses less digits than its factorization.

3125513247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2447 (or 2410 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 3125513247 is about 55906.2898697454. The cubic root of 3125513247 is about 1462.0889043693.

The spelling of 3125513247 in words is "three billion, one hundred twenty-five million, five hundred thirteen thousand, two hundred forty-seven".