1625578955 has 32 divisors (see below), whose sum is σ = 2619122688. Its totient is φ = 935395200.

The previous prime is 1625578897. The next prime is 1625578967. The reversal of 1625578955 is 5598755261.

It is not a de Polignac number, because 1625578955 - 2⁶ = 1625578891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1625578897 and 1625578906.

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, 157391 + ... + 167400.

It is an arithmetic number, because the mean of its divisors is an integer number (81847584).

Almost surely, 2^1625578955 is an apocalyptic number.

1625578955 is a deficient number, since it is larger than the sum of its proper divisors (993543733).

1625578955 is a wasteful number, since it uses less digits than its factorization.

1625578955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324827.

The product of its digits is 3780000, while the sum is 53.

The square root of 1625578955 is about 40318.4691549667. The cubic root of 1625578955 is about 1175.8069495359.

The spelling of 1625578955 in words is "one billion, six hundred twenty-five million, five hundred seventy-eight thousand, nine hundred fifty-five".