25420050 has 36 divisors (see below), whose sum is σ = 68296410. Its totient is φ = 6778560.

The previous prime is 25420039. The next prime is 25420063. The reversal of 25420050 is 5002452.

It can be written as a sum of positive squares in 3 ways, for example, as 16184529 + 9235521 = 4023^2 + 3039^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 27795 + ... + 28694.

Almost surely, 2^25420050 is an apocalyptic number.

25420050 is an abundant number, since it is smaller than the sum of its proper divisors (42876360).

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

25420050 is a wasteful number, since it uses less digits than its factorization.

25420050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56507 (or 56499 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 25420050 is about 5041.8300249017. The cubic root of 25420050 is about 294.0303314535.

The spelling of 25420050 in words is "twenty-five million, four hundred twenty thousand, fifty".