25097652 has 18 divisors (see below), whose sum is σ = 63441378. Its totient is φ = 8365872.

The previous prime is 25097621. The next prime is 25097659. The reversal of 25097652 is 25679052.

It can be written as a sum of positive squares in only one way, i.e., 15023376 + 10074276 = 3876^2 + 3174^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 697157 = 25097652 / (2 + 5 + 0 + 9 + 7 + 6 + 5 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25097659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 348543 + ... + 348614.

It is an arithmetic number, because the mean of its divisors is an integer number (3524521).

Almost surely, 2^25097652 is an apocalyptic number.

It is an amenable number.

25097652 is an abundant number, since it is smaller than the sum of its proper divisors (38343726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25097652 is a wasteful number, since it uses less digits than its factorization.

25097652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697167 (or 697162 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 25097652 is about 5009.7556826656. The cubic root of 25097652 is about 292.7819941001.

The spelling of 25097652 in words is "twenty-five million, ninety-seven thousand, six hundred fifty-two".