157525717 has 4 divisors (see below), whose sum is σ = 160877376. Its totient is φ = 154174060.

The previous prime is 157525703. The next prime is 157525747. The reversal of 157525717 is 717525751.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 157525717 - 2¹¹ = 157523669 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157525717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157525747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1675759 + ... + 1675852.

It is an arithmetic number, because the mean of its divisors is an integer number (40219344).

Almost surely, 2^157525717 is an apocalyptic number.

It is an amenable number.

157525717 is a deficient number, since it is larger than the sum of its proper divisors (3351659).

157525717 is an equidigital number, since it uses as much as digits as its factorization.

157525717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3351658.

The product of its digits is 85750, while the sum is 40.

The square root of 157525717 is about 12550.9249459950. The cubic root of 157525717 is about 540.0705406248.

The spelling of 157525717 in words is "one hundred fifty-seven million, five hundred twenty-five thousand, seven hundred seventeen".