125752551 has 8 divisors (see below), whose sum is σ = 167731200. Its totient is φ = 83804472.

The previous prime is 125752547. The next prime is 125752567. The reversal of 125752551 is 155257521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125752551 - 2² = 125752547 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125752591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4900 + ... + 16598.

It is an arithmetic number, because the mean of its divisors is an integer number (20966400).

Almost surely, 2^125752551 is an apocalyptic number.

125752551 is a deficient number, since it is larger than the sum of its proper divisors (41978649).

125752551 is a wasteful number, since it uses less digits than its factorization.

125752551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15285.

The product of its digits is 17500, while the sum is 33.

The square root of 125752551 is about 11213.9444888942. The cubic root of 125752551 is about 501.0013944129.

The spelling of 125752551 in words is "one hundred twenty-five million, seven hundred fifty-two thousand, five hundred fifty-one".