125724505 has 8 divisors (see below), whose sum is σ = 151031232. Its totient is φ = 100471728.

The previous prime is 125724451. The next prime is 125724517. The reversal of 125724505 is 505427521.

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 125724505 - 2¹³ = 125716313 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8167 + ... + 17836.

It is an arithmetic number, because the mean of its divisors is an integer number (18878904).

Almost surely, 2^125724505 is an apocalyptic number.

It is an amenable number.

125724505 is a deficient number, since it is larger than the sum of its proper divisors (25306727).

125724505 is an equidigital number, since it uses as much as digits as its factorization.

125724505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26975.

The product of its (nonzero) digits is 14000, while the sum is 31.

The square root of 125724505 is about 11212.6939225148. The cubic root of 125724505 is about 500.9641463154.

The spelling of 125724505 in words is "one hundred twenty-five million, seven hundred twenty-four thousand, five hundred five".