1251925753 has 16 divisors (see below), whose sum is σ = 1390841536. Its totient is φ = 1119666240.

The previous prime is 1251925739. The next prime is 1251925771. The reversal of 1251925753 is 3575291521.

It is a cyclic number.

It is not a de Polignac number, because 1251925753 - 2⁵ = 1251925721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1251925733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41350 + ... + 64912.

It is an arithmetic number, because the mean of its divisors is an integer number (86927596).

Almost surely, 2^1251925753 is an apocalyptic number.

1251925753 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1251925753 is a deficient number, since it is larger than the sum of its proper divisors (138915783).

1251925753 is a wasteful number, since it uses less digits than its factorization.

1251925753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23704.

The product of its digits is 94500, while the sum is 40.

The square root of 1251925753 is about 35382.5628382117. The cubic root of 1251925753 is about 1077.7702490537.

The spelling of 1251925753 in words is "one billion, two hundred fifty-one million, nine hundred twenty-five thousand, seven hundred fifty-three".