1052550990 has 64 divisors (see below), whose sum is σ = 2872108800. Its totient is φ = 274149792.

The previous prime is 1052550959. The next prime is 1052551007. The reversal of 1052550990 is 990552501.

1052550990 is a `hidden beast` number, since 10 + 5 + 2 + 550 + 9 + 90 = 666.

It is a super-2 number, since 2×1052550990² = 2215727173099960200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33720 + ... + 56939.

It is an arithmetic number, because the mean of its divisors is an integer number (44876700).

Almost surely, 2^1052550990 is an apocalyptic number.

1052550990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1052550990 is an abundant number, since it is smaller than the sum of its proper divisors (1819557810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1052550990 is a wasteful number, since it uses less digits than its factorization.

1052550990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90718 (or 90712 counting only the distinct ones).

The product of its (nonzero) digits is 20250, while the sum is 36.

The square root of 1052550990 is about 32443.0422432915. The cubic root of 1052550990 is about 1017.2188076116.

The spelling of 1052550990 in words is "one billion, fifty-two million, five hundred fifty thousand, nine hundred ninety".