25723497 has 8 divisors (see below), whose sum is σ = 34945344. Its totient is φ = 16825328.

The previous prime is 25723487. The next prime is 25723501. The reversal of 25723497 is 79432752.

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 25723497 - 2¹² = 25719401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25723447) 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, 80733 + ... + 81050.

It is an arithmetic number, because the mean of its divisors is an integer number (4368168).

Almost surely, 2^25723497 is an apocalyptic number.

It is an amenable number.

25723497 is a deficient number, since it is larger than the sum of its proper divisors (9221847).

25723497 is a wasteful number, since it uses less digits than its factorization.

25723497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161839.

The product of its digits is 105840, while the sum is 39.

The square root of 25723497 is about 5071.8336920684. The cubic root of 25723497 is about 295.1956836312.

The spelling of 25723497 in words is "twenty-five million, seven hundred twenty-three thousand, four hundred ninety-seven".