1900545625 has 20 divisors (see below), whose sum is σ = 2590833168. Its totient is φ = 1382210000.

The previous prime is 1900545593. The next prime is 1900545643. The reversal of 1900545625 is 5265450091.

It is not a de Polignac number, because 1900545625 - 2⁵ = 1900545593 is a prime.

It is a super-2 number, since 2×1900545625² = 7224147345413281250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 131347 + ... + 145096.

Almost surely, 2^1900545625 is an apocalyptic number.

It is an amenable number.

1900545625 is a deficient number, since it is larger than the sum of its proper divisors (690287543).

1900545625 is an equidigital number, since it uses as much as digits as its factorization.

1900545625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276474 (or 276459 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 37.

The square root of 1900545625 is about 43595.2477341281. The cubic root of 1900545625 is about 1238.6808780323.

The spelling of 1900545625 in words is "one billion, nine hundred million, five hundred forty-five thousand, six hundred twenty-five".