25727442 has 32 divisors (see below), whose sum is σ = 55608000. Its totient is φ = 7888320.

The previous prime is 25727417. The next prime is 25727447. The reversal of 25727442 is 24472752.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (25727447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38592 + ... + 39252.

It is an arithmetic number, because the mean of its divisors is an integer number (1737750).

Almost surely, 2^25727442 is an apocalyptic number.

25727442 is an abundant number, since it is smaller than the sum of its proper divisors (29880558).

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

25727442 is a wasteful number, since it uses less digits than its factorization.

25727442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178.

The product of its digits is 31360, while the sum is 33.

The square root of 25727442 is about 5072.2225897529. Note that the first 3 decimals coincide. The cubic root of 25727442 is about 295.2107734334.

The spelling of 25727442 in words is "twenty-five million, seven hundred twenty-seven thousand, four hundred forty-two".