1900945255 has 12 divisors (see below), whose sum is σ = 2488933512. Its totient is φ = 1382270480.

The previous prime is 1900945217. The next prime is 1900945261. The reversal of 1900945255 is 5525490091.

It is not a de Polignac number, because 1900945255 - 2²³ = 1892556647 is a prime.

It is a super-2 number, since 2×1900945255² = 7227185725014030050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 320406 + ... + 326284.

It is an arithmetic number, because the mean of its divisors is an integer number (207411126).

Almost surely, 2^1900945255 is an apocalyptic number.

1900945255 is a deficient number, since it is larger than the sum of its proper divisors (587988257).

1900945255 is an frugal number, since it uses more digits than its factorization.

1900945255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11774 (or 5895 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 40.

The square root of 1900945255 is about 43599.8309056354. The cubic root of 1900945255 is about 1238.7676915840.

The spelling of 1900945255 in words is "one billion, nine hundred million, nine hundred forty-five thousand, two hundred fifty-five".