1250745660 has 72 divisors (see below), whose sum is σ = 3797853696. Its totient is φ = 333187200.

The previous prime is 1250745653. The next prime is 1250745667. The reversal of 1250745660 is 665470521.

It is a happy number.

1250745660 is a `hidden beast` number, since 1 + 25 + 0 + 74 + 566 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1250745653) and next prime (1250745667).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1250745667) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 204162 + ... + 210198.

It is an arithmetic number, because the mean of its divisors is an integer number (52747968).

Almost surely, 2^1250745660 is an apocalyptic number.

1250745660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1250745660 is an abundant number, since it is smaller than the sum of its proper divisors (2547108036).

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

1250745660 is a wasteful number, since it uses less digits than its factorization.

1250745660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7203 (or 7198 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 1250745660 is about 35365.8827120150. The cubic root of 1250745660 is about 1077.4314992081.

The spelling of 1250745660 in words is "one billion, two hundred fifty million, seven hundred forty-five thousand, six hundred sixty".