125172553 has 8 divisors (see below), whose sum is σ = 136716480. Its totient is φ = 113656080.

The previous prime is 125172533. The next prime is 125172611. The reversal of 125172553 is 355271521.

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

It is a cyclic number.

It is not a de Polignac number, because 125172553 - 2⁵ = 125172521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125172533) 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, 3343 + ... + 16171.

It is an arithmetic number, because the mean of its divisors is an integer number (17089560).

Almost surely, 2^125172553 is an apocalyptic number.

It is an amenable number.

125172553 is a deficient number, since it is larger than the sum of its proper divisors (11543927).

125172553 is a wasteful number, since it uses less digits than its factorization.

125172553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13727.

The product of its digits is 10500, while the sum is 31.

The square root of 125172553 is about 11188.0540309743. The cubic root of 125172553 is about 500.2299648828.

The spelling of 125172553 in words is "one hundred twenty-five million, one hundred seventy-two thousand, five hundred fifty-three".