1625431255 has 8 divisors (see below), whose sum is σ = 2229162912. Its totient is φ = 1114581408.

The previous prime is 1625431253. The next prime is 1625431307. The reversal of 1625431255 is 5521345261.

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 1625431255 - 2¹ = 1625431253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1625431255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1625431253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23220412 + ... + 23220481.

It is an arithmetic number, because the mean of its divisors is an integer number (278645364).

Almost surely, 2^1625431255 is an apocalyptic number.

1625431255 is a deficient number, since it is larger than the sum of its proper divisors (603731657).

1625431255 is an equidigital number, since it uses as much as digits as its factorization.

1625431255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46440905.

The product of its digits is 36000, while the sum is 34.

The square root of 1625431255 is about 40316.6374465927. The cubic root of 1625431255 is about 1175.7713372092.

The spelling of 1625431255 in words is "one billion, six hundred twenty-five million, four hundred thirty-one thousand, two hundred fifty-five".