1250641506 has 16 divisors (see below), whose sum is σ = 2503195200. Its totient is φ = 416561808.

The previous prime is 1250641481. The next prime is 1250641507. The reversal of 1250641506 is 6051460521.

It is not an unprimeable number, because it can be changed into a prime (1250641507) 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 in 7 ways as a sum of consecutive naturals, for example, 71101 + ... + 86928.

It is an arithmetic number, because the mean of its divisors is an integer number (156449700).

Almost surely, 2^1250641506 is an apocalyptic number.

1250641506 is an abundant number, since it is smaller than the sum of its proper divisors (1252553694).

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

1250641506 is a wasteful number, since it uses less digits than its factorization.

1250641506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159353.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 1250641506 is about 35364.4101604989. The cubic root of 1250641506 is about 1077.4015912049.

The spelling of 1250641506 in words is "one billion, two hundred fifty million, six hundred forty-one thousand, five hundred six".