25497707 has 4 divisors (see below), whose sum is σ = 25543560. Its totient is φ = 25451856.

The previous prime is 25497701. The next prime is 25497713. The reversal of 25497707 is 70779452.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (25497701) and next prime (25497713).

It is a cyclic number.

It is not a de Polignac number, because 25497707 - 2⁶ = 25497643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25497701) 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, 22082 + ... + 23207.

It is an arithmetic number, because the mean of its divisors is an integer number (6385890).

Almost surely, 2^25497707 is an apocalyptic number.

25497707 is a deficient number, since it is larger than the sum of its proper divisors (45853).

25497707 is an equidigital number, since it uses as much as digits as its factorization.

25497707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45852.

The product of its (nonzero) digits is 123480, while the sum is 41.

The square root of 25497707 is about 5049.5254232452. The cubic root of 25497707 is about 294.3294431269.

The spelling of 25497707 in words is "twenty-five million, four hundred ninety-seven thousand, seven hundred seven".