25742490 has 16 divisors (see below), whose sum is σ = 61782048. Its totient is φ = 6864656.

The previous prime is 25742489. The next prime is 25742503. The reversal of 25742490 is 9424752.

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 7 ways as a sum of consecutive naturals, for example, 429012 + ... + 429071.

It is an arithmetic number, because the mean of its divisors is an integer number (3861378).

Almost surely, 2^25742490 is an apocalyptic number.

25742490 is an abundant number, since it is smaller than the sum of its proper divisors (36039558).

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

25742490 is a wasteful number, since it uses less digits than its factorization.

25742490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858093.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 25742490 is about 5073.7057462963. The cubic root of 25742490 is about 295.2683185493.

The spelling of 25742490 in words is "twenty-five million, seven hundred forty-two thousand, four hundred ninety".