25380442 has 8 divisors (see below), whose sum is σ = 38370816. Its totient is φ = 12590172.

The previous prime is 25380437. The next prime is 25380451. The reversal of 25380442 is 24408352.

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

It is a super-2 number, since 2×25380442² = 1288333672230728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25380442.

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 3 ways as a sum of consecutive naturals, for example, 49708 + ... + 50215.

It is an arithmetic number, because the mean of its divisors is an integer number (4796352).

Almost surely, 2^25380442 is an apocalyptic number.

25380442 is a deficient number, since it is larger than the sum of its proper divisors (12990374).

25380442 is a wasteful number, since it uses less digits than its factorization.

25380442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100052.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 25380442 is about 5037.9005547946. The cubic root of 25380442 is about 293.8775385821.

Adding to 25380442 its reverse (24408352), we get a palindrome (49788794).

The spelling of 25380442 in words is "twenty-five million, three hundred eighty thousand, four hundred forty-two".