25751397 has 8 divisors (see below), whose sum is σ = 39240256. Its totient is φ = 14715072.

The previous prime is 25751387. The next prime is 25751399. The reversal of 25751397 is 79315752.

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

It is not a de Polignac number, because 25751397 - 2⁴ = 25751381 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 (25751399) 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, 613108 + ... + 613149.

It is an arithmetic number, because the mean of its divisors is an integer number (4905032).

Almost surely, 2^25751397 is an apocalyptic number.

It is an amenable number.

25751397 is a deficient number, since it is larger than the sum of its proper divisors (13488859).

25751397 is a wasteful number, since it uses less digits than its factorization.

25751397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226267.

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

The square root of 25751397 is about 5074.5834311794. The cubic root of 25751397 is about 295.3023692782.

The spelling of 25751397 in words is "twenty-five million, seven hundred fifty-one thousand, three hundred ninety-seven".