25420124 has 24 divisors (see below), whose sum is σ = 47510400. Its totient is φ = 11874240.

The previous prime is 25420099. The next prime is 25420139. The reversal of 25420124 is 42102452.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25420096 and 25420105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62 + ... + 7130.

It is an arithmetic number, because the mean of its divisors is an integer number (1979600).

Almost surely, 2^25420124 is an apocalyptic number.

It is an amenable number.

25420124 is a deficient number, since it is larger than the sum of its proper divisors (22090276).

25420124 is a wasteful number, since it uses less digits than its factorization.

25420124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7133 (or 7131 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 25420124 is about 5041.8373635015. The cubic root of 25420124 is about 294.0306167692.

Adding to 25420124 its reverse (42102452), we get a palindrome (67522576).

The spelling of 25420124 in words is "twenty-five million, four hundred twenty thousand, one hundred twenty-four".