1900090553 has 2 divisors, whose sum is σ = 1900090554. Its totient is φ = 1900090552.

The previous prime is 1900090537. The next prime is 1900090567. The reversal of 1900090553 is 3550900091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1700490169 + 199600384 = 41237^2 + 14128^2 .

It is a cyclic number.

It is not a de Polignac number, because 1900090553 - 2⁴ = 1900090537 is a prime.

It is a super-2 number, since 2×1900090553² = 7220688219199691618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1900090253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 950045276 + 950045277.

It is an arithmetic number, because the mean of its divisors is an integer number (950045277).

Almost surely, 2^1900090553 is an apocalyptic number.

It is an amenable number.

1900090553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1900090553 is an equidigital number, since it uses as much as digits as its factorization.

1900090553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6075, while the sum is 32.

The square root of 1900090553 is about 43590.0281371783. The cubic root of 1900090553 is about 1238.5820057272.

The spelling of 1900090553 in words is "one billion, nine hundred million, ninety thousand, five hundred fifty-three".