25770442 has 8 divisors (see below), whose sum is σ = 40336416. Its totient is φ = 12324972.

The previous prime is 25770439. The next prime is 25770443. The reversal of 25770442 is 24407752.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (25770443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280068 + ... + 280159.

It is an arithmetic number, because the mean of its divisors is an integer number (5042052).

Almost surely, 2^25770442 is an apocalyptic number.

25770442 is a deficient number, since it is larger than the sum of its proper divisors (14565974).

25770442 is a wasteful number, since it uses less digits than its factorization.

25770442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560252.

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 25770442 is about 5076.4595930629. The cubic root of 25770442 is about 295.3751504136.

The spelling of 25770442 in words is "twenty-five million, seven hundred seventy thousand, four hundred forty-two".