25120424 has 32 divisors (see below), whose sum is σ = 56998080. Its totient is φ = 10132224.

The previous prime is 25120423. The next prime is 25120427. The reversal of 25120424 is 42402152.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25120396 and 25120405.

It is not an unprimeable number, because it can be changed into a prime (25120423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12242 + ... + 14145.

It is an arithmetic number, because the mean of its divisors is an integer number (1781190).

Almost surely, 2^25120424 is an apocalyptic number.

It is an amenable number.

25120424 is an abundant number, since it is smaller than the sum of its proper divisors (31877656).

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

25120424 is a wasteful number, since it uses less digits than its factorization.

25120424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26417 (or 26413 counting only the distinct ones).

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

The square root of 25120424 is about 5012.0279328831. The cubic root of 25120424 is about 292.8705178674.

Adding to 25120424 its reverse (42402152), we get a palindrome (67522576).

The spelling of 25120424 in words is "twenty-five million, one hundred twenty thousand, four hundred twenty-four".