15725973 has 8 divisors (see below), whose sum is σ = 21055936. Its totient is φ = 10440000.

The previous prime is 15725953. The next prime is 15725987. The reversal of 15725973 is 37952751.

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

It is not a de Polignac number, because 15725973 - 2⁶ = 15725909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15725923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10153 + ... + 11598.

It is an arithmetic number, because the mean of its divisors is an integer number (2631992).

Almost surely, 2^15725973 is an apocalyptic number.

It is an amenable number.

15725973 is a deficient number, since it is larger than the sum of its proper divisors (5329963).

15725973 is a wasteful number, since it uses less digits than its factorization.

15725973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21995.

The product of its digits is 66150, while the sum is 39.

The square root of 15725973 is about 3965.5986937662. The cubic root of 15725973 is about 250.5373667868.

The spelling of 15725973 in words is "fifteen million, seven hundred twenty-five thousand, nine hundred seventy-three".