1250490564 has 18 divisors (see below), whose sum is σ = 3160962350. Its totient is φ = 416830176.

The previous prime is 1250490509. The next prime is 1250490581. The reversal of 1250490564 is 4650940521.

1250490564 is a `hidden beast` number, since 1 + 2 + 5 + 0 + 4 + 90 + 564 = 666.

It can be written as a sum of positive squares in only one way, i.e., 707134464 + 543356100 = 26592^2 + 23310^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 34735849 = 1250490564 / (1 + 2 + 5 + 0 + 4 + 9 + 0 + 5 + 6 + 4).

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 17367889 + ... + 17367960.

Almost surely, 2^1250490564 is an apocalyptic number.

It is an amenable number.

1250490564 is an abundant number, since it is smaller than the sum of its proper divisors (1910471786).

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

1250490564 is a wasteful number, since it uses less digits than its factorization.

1250490564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34735859 (or 34735854 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 1250490564 is about 35362.2760014114. The cubic root of 1250490564 is about 1077.3582449987.

The spelling of 1250490564 in words is "one billion, two hundred fifty million, four hundred ninety thousand, five hundred sixty-four".