25749474 has 16 divisors (see below), whose sum is σ = 51770880. Its totient is φ = 8537840.

The previous prime is 25749469. The next prime is 25749527. The reversal of 25749474 is 47494752.

It is a super-2 number, since 2×25749474² = 1326070822553352, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 10089 + ... + 12380.

It is an arithmetic number, because the mean of its divisors is an integer number (3235680).

Almost surely, 2^25749474 is an apocalyptic number.

25749474 is an abundant number, since it is smaller than the sum of its proper divisors (26021406).

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

25749474 is a wasteful number, since it uses less digits than its factorization.

25749474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22665.

The product of its digits is 282240, while the sum is 42.

The square root of 25749474 is about 5074.3939539614. The cubic root of 25749474 is about 295.2950184719.

The spelling of 25749474 in words is "twenty-five million, seven hundred forty-nine thousand, four hundred seventy-four".