125252566 has 16 divisors (see below), whose sum is σ = 205791840. Its totient is φ = 56909440.

The previous prime is 125252563. The next prime is 125252599. The reversal of 125252566 is 665252521.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125252563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62530 + ... + 64501.

It is an arithmetic number, because the mean of its divisors is an integer number (12861990).

Almost surely, 2^125252566 is an apocalyptic number.

125252566 is a deficient number, since it is larger than the sum of its proper divisors (80539274).

125252566 is a wasteful number, since it uses less digits than its factorization.

125252566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127079.

The product of its digits is 36000, while the sum is 34.

The square root of 125252566 is about 11191.6292826380. The cubic root of 125252566 is about 500.3365281135.

The spelling of 125252566 in words is "one hundred twenty-five million, two hundred fifty-two thousand, five hundred sixty-six".