25351442 has 8 divisors (see below), whose sum is σ = 38050236. Its totient is φ = 12668032.

The previous prime is 25351433. The next prime is 25351463. The reversal of 25351442 is 24415352.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 24790441 + 561001 = 4979^2 + 749^2 .

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

It is a super-2 number, since 2×25351442² = 1285391222958728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2138 + ... + 7434.

Almost surely, 2^25351442 is an apocalyptic number.

25351442 is a deficient number, since it is larger than the sum of its proper divisors (12698794).

25351442 is a wasteful number, since it uses less digits than its factorization.

25351442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7692.

The product of its digits is 4800, while the sum is 26.

The square root of 25351442 is about 5035.0215491098. The cubic root of 25351442 is about 293.7655665811.

Adding to 25351442 its reverse (24415352), we get a palindrome (49766794).

The spelling of 25351442 in words is "twenty-five million, three hundred fifty-one thousand, four hundred forty-two".