1900052897 has 6 divisors (see below), whose sum is σ = 1952794998. Its totient is φ = 1848698784.

The previous prime is 1900052893. The next prime is 1900052909. The reversal of 1900052897 is 7982500091.

It can be written as a sum of positive squares in 3 ways, for example, as 1478325601 + 421727296 = 38449^2 + 20536^2 .

It is not a de Polignac number, because 1900052897 - 2² = 1900052893 is a prime.

It is a super-2 number, since 2×1900052897² = 7220402022796185218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1900052893) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 692588 + ... + 695325.

It is an arithmetic number, because the mean of its divisors is an integer number (325465833).

Almost surely, 2^1900052897 is an apocalyptic number.

It is an amenable number.

1900052897 is a deficient number, since it is larger than the sum of its proper divisors (52742101).

1900052897 is an equidigital number, since it uses as much as digits as its factorization.

1900052897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387987 (or 1387950 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 1900052897 is about 43589.5962013873. The cubic root of 1900052897 is about 1238.5738235992.

The spelling of 1900052897 in words is "one billion, nine hundred million, fifty-two thousand, eight hundred ninety-seven".