25287030 has 24 divisors (see below), whose sum is σ = 65746512. Its totient is φ = 6743184.

The previous prime is 25287023. The next prime is 25287047. The reversal of 25287030 is 3078252.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25286985 and 25287003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 140394 + ... + 140573.

It is an arithmetic number, because the mean of its divisors is an integer number (2739438).

Almost surely, 2^25287030 is an apocalyptic number.

25287030 is an abundant number, since it is smaller than the sum of its proper divisors (40459482).

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

25287030 is a wasteful number, since it uses less digits than its factorization.

25287030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280980 (or 280977 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 25287030 is about 5028.6210833587. The cubic root of 25287030 is about 293.5165593676.

The spelling of 25287030 in words is "twenty-five million, two hundred eighty-seven thousand, thirty".