25760442 has 16 divisors (see below), whose sum is σ = 53183232. Its totient is φ = 8309760.

The previous prime is 25760431. The next prime is 25760443. The reversal of 25760442 is 24406752.

It is a super-4 number, since 4×25760442⁴ (a number of 31 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (25760443) by changing a digit.

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, 69063 + ... + 69434.

It is an arithmetic number, because the mean of its divisors is an integer number (3323952).

Almost surely, 2^25760442 is an apocalyptic number.

25760442 is an abundant number, since it is smaller than the sum of its proper divisors (27422790).

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

25760442 is a wasteful number, since it uses less digits than its factorization.

25760442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138533.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 25760442 is about 5075.4745590930. The cubic root of 25760442 is about 295.3369395356.

The spelling of 25760442 in words is "twenty-five million, seven hundred sixty thousand, four hundred forty-two".