25913730 has 32 divisors (see below), whose sum is σ = 62394624. Its totient is φ = 6887936.

The previous prime is 25913717. The next prime is 25913743. The reversal of 25913730 is 3731952.

It is an interprime number because it is at equal distance from previous prime (25913717) and next prime (25913743).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9367 + ... + 11813.

It is an arithmetic number, because the mean of its divisors is an integer number (1949832).

Almost surely, 2^25913730 is an apocalyptic number.

25913730 is an abundant number, since it is smaller than the sum of its proper divisors (36480894).

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

25913730 is a wasteful number, since it uses less digits than its factorization.

25913730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2810.

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 25913730 is about 5090.5530151448. The cubic root of 25913730 is about 295.9215841099.

The spelling of 25913730 in words is "twenty-five million, nine hundred thirteen thousand, seven hundred thirty".