1090512553 has 6 divisors (see below), whose sum is σ = 1180851054. Its totient is φ = 1006626816.

The previous prime is 1090512539. The next prime is 1090512559. The reversal of 1090512553 is 3552150901.

It can be written as a sum of positive squares in 3 ways, for example, as 75898944 + 1014613609 = 8712^2 + 31853^2 .

It is not a de Polignac number, because 1090512553 - 2²¹ = 1088415401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1090512559) 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, 3226200 + ... + 3226537.

It is an arithmetic number, because the mean of its divisors is an integer number (196808509).

Almost surely, 2^1090512553 is an apocalyptic number.

1090512553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1090512553 is a deficient number, since it is larger than the sum of its proper divisors (90338501).

1090512553 is an equidigital number, since it uses as much as digits as its factorization.

1090512553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6452763 (or 6452750 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 31.

The square root of 1090512553 is about 33022.9095174850. The cubic root of 1090512553 is about 1029.3037532380.

The spelling of 1090512553 in words is "one billion, ninety million, five hundred twelve thousand, five hundred fifty-three".