25257078 has 48 divisors (see below), whose sum is σ = 68230656. Its totient is φ = 6559920.

The previous prime is 25257077. The next prime is 25257101. The reversal of 25257078 is 87075252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25257077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7726 + ... + 10497.

It is an arithmetic number, because the mean of its divisors is an integer number (1421472).

Almost surely, 2^25257078 is an apocalyptic number.

25257078 is an abundant number, since it is smaller than the sum of its proper divisors (42973578).

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

25257078 is a wasteful number, since it uses less digits than its factorization.

25257078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18249 (or 18246 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The square root of 25257078 is about 5025.6420485347. The cubic root of 25257078 is about 293.4006253446.

The spelling of 25257078 in words is "twenty-five million, two hundred fifty-seven thousand, seventy-eight".