25356042 has 12 divisors (see below), whose sum is σ = 54938130. Its totient is φ = 8452008.

The previous prime is 25356041. The next prime is 25356049. The reversal of 25356042 is 24065352.

25356042 is a `hidden beast` number, since 2 + 53 + 5 + 604 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 20061441 + 5294601 = 4479^2 + 2301^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25355997 and 25356015.

It is not an unprimeable number, because it can be changed into a prime (25356041) 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 5 ways as a sum of consecutive naturals, for example, 704317 + ... + 704352.

Almost surely, 2^25356042 is an apocalyptic number.

25356042 is an abundant number, since it is smaller than the sum of its proper divisors (29582088).

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

25356042 is a wasteful number, since it uses less digits than its factorization.

25356042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1408677 (or 1408674 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 25356042 is about 5035.4783288184. The cubic root of 25356042 is about 293.7833333533.

The spelling of 25356042 in words is "twenty-five million, three hundred fifty-six thousand, forty-two".