25240697 has 8 divisors (see below), whose sum is σ = 26156616. Its totient is φ = 24337152.

The previous prime is 25240693. The next prime is 25240703. The reversal of 25240697 is 79604252.

It can be written as a sum of positive squares in 4 ways, for example, as 430336 + 24810361 = 656^2 + 4981^2 .

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 25240697 - 2² = 25240693 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25240693) 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, 1163 + ... + 7199.

It is an arithmetic number, because the mean of its divisors is an integer number (3269577).

Almost surely, 2^25240697 is an apocalyptic number.

It is an amenable number.

25240697 is a deficient number, since it is larger than the sum of its proper divisors (915919).

25240697 is a wasteful number, since it uses less digits than its factorization.

25240697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6187.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 25240697 is about 5024.0120421830. The cubic root of 25240697 is about 293.3371812799.

The spelling of 25240697 in words is "twenty-five million, two hundred forty thousand, six hundred ninety-seven".