1625323455 has 32 divisors (see below), whose sum is σ = 3302246400. Its totient is φ = 743004576.

The previous prime is 1625323433. The next prime is 1625323463. The reversal of 1625323455 is 5543235261.

1625323455 is a `hidden beast` number, since 1 + 625 + 3 + 23 + 4 + 5 + 5 = 666.

It is not a de Polignac number, because 1625323455 - 2¹⁷ = 1625192383 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 859015 + ... + 860904.

It is an arithmetic number, because the mean of its divisors is an integer number (103195200).

Almost surely, 2^1625323455 is an apocalyptic number.

1625323455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1625323455 is an abundant number, since it is smaller than the sum of its proper divisors (1676922945).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1625323455 is a wasteful number, since it uses less digits than its factorization.

1625323455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719940 (or 1719934 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

The square root of 1625323455 is about 40315.3005073756. The cubic root of 1625323455 is about 1175.7453439121.

The spelling of 1625323455 in words is "one billion, six hundred twenty-five million, three hundred twenty-three thousand, four hundred fifty-five".