25789497 has 16 divisors (see below), whose sum is σ = 35743680. Its totient is φ = 16520000.

The previous prime is 25789453. The next prime is 25789501. The reversal of 25789497 is 79498752.

It is a cyclic number.

It is not a de Polignac number, because 25789497 - 2¹⁴ = 25773113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25789097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21247 + ... + 22427.

It is an arithmetic number, because the mean of its divisors is an integer number (2233980).

Almost surely, 2^25789497 is an apocalyptic number.

It is an amenable number.

25789497 is a deficient number, since it is larger than the sum of its proper divisors (9954183).

25789497 is a wasteful number, since it uses less digits than its factorization.

25789497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1464.

The product of its digits is 1270080, while the sum is 51.

The square root of 25789497 is about 5078.3360463837. The cubic root of 25789497 is about 295.4479338868.

The spelling of 25789497 in words is "twenty-five million, seven hundred eighty-nine thousand, four hundred ninety-seven".