25953897 has 8 divisors (see below), whose sum is σ = 35410144. Its totient is φ = 16900128.

The previous prime is 25953887. The next prime is 25953901. The reversal of 25953897 is 79835952.

It is a happy number.

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

It is not a de Polignac number, because 25953897 - 2⁶ = 25953833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25953817) 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, 100468 + ... + 100725.

It is an arithmetic number, because the mean of its divisors is an integer number (4426268).

Almost surely, 2^25953897 is an apocalyptic number.

It is an amenable number.

25953897 is a deficient number, since it is larger than the sum of its proper divisors (9456247).

25953897 is a wasteful number, since it uses less digits than its factorization.

25953897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201239.

The product of its digits is 680400, while the sum is 48.

The square root of 25953897 is about 5094.4967366758. The cubic root of 25953897 is about 296.0744007339.

The spelling of 25953897 in words is "twenty-five million, nine hundred fifty-three thousand, eight hundred ninety-seven".