25437042 has 12 divisors (see below), whose sum is σ = 55113630. Its totient is φ = 8479008.

The previous prime is 25437017. The next prime is 25437047. The reversal of 25437042 is 24073452.

25437042 is a `hidden beast` number, since 254 + 370 + 42 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19633761 + 5803281 = 4431^2 + 2409^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25436997 and 25437015.

It is not an unprimeable number, because it can be changed into a prime (25437047) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 706567 + ... + 706602.

Almost surely, 2^25437042 is an apocalyptic number.

25437042 is an abundant number, since it is smaller than the sum of its proper divisors (29676588).

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

25437042 is a wasteful number, since it uses less digits than its factorization.

25437042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413177 (or 1413174 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 25437042 is about 5043.5148458193. The cubic root of 25437042 is about 294.0958315945.

The spelling of 25437042 in words is "twenty-five million, four hundred thirty-seven thousand, forty-two".