1625372313 has 4 divisors (see below), whose sum is σ = 2167163088. Its totient is φ = 1083581540.

The previous prime is 1625372299. The next prime is 1625372327. The reversal of 1625372313 is 3132735261.

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 an interprime number because it is at equal distance from previous prime (1625372299) and next prime (1625372327).

It is a cyclic number.

It is not a de Polignac number, because 1625372313 - 2¹³ = 1625364121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1625372213) 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, 270895383 + ... + 270895388.

It is an arithmetic number, because the mean of its divisors is an integer number (541790772).

Almost surely, 2^1625372313 is an apocalyptic number.

It is an amenable number.

1625372313 is a deficient number, since it is larger than the sum of its proper divisors (541790775).

1625372313 is an equidigital number, since it uses as much as digits as its factorization.

1625372313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541790774.

The product of its digits is 22680, while the sum is 33.

The square root of 1625372313 is about 40315.9064514244. The cubic root of 1625372313 is about 1175.7571249498.

The spelling of 1625372313 in words is "one billion, six hundred twenty-five million, three hundred seventy-two thousand, three hundred thirteen".