25028478 has 12 divisors (see below), whose sum is σ = 54228408. Its totient is φ = 8342820.

The previous prime is 25028473. The next prime is 25028489. The reversal of 25028478 is 87482052.

It is a happy number.

25028478 is a `hidden beast` number, since 2 + 502 + 84 + 78 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25028473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 695218 + ... + 695253.

It is an arithmetic number, because the mean of its divisors is an integer number (4519034).

Almost surely, 2^25028478 is an apocalyptic number.

25028478 is an abundant number, since it is smaller than the sum of its proper divisors (29199930).

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

25028478 is a wasteful number, since it uses less digits than its factorization.

25028478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390479 (or 1390476 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 25028478 is about 5002.8469894651. The cubic root of 25028478 is about 292.5127585932.

The spelling of 25028478 in words is "twenty-five million, twenty-eight thousand, four hundred seventy-eight".