25000122 has 32 divisors (see below), whose sum is σ = 57687552. Its totient is φ = 7074864.

The previous prime is 25000111. The next prime is 25000127. The reversal of 25000122 is 22100052.

It is a super-2 number, since 2×25000122² = 1250012200029768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25000098 and 25000107.

It is not an unprimeable number, because it can be changed into a prime (25000127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1713 + ... + 7275.

It is an arithmetic number, because the mean of its divisors is an integer number (1802736).

Almost surely, 2^25000122 is an apocalyptic number.

25000122 is an abundant number, since it is smaller than the sum of its proper divisors (32687430).

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

25000122 is a wasteful number, since it uses less digits than its factorization.

25000122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5682.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 25000122 is about 5000.0121999851. The cubic root of 25000122 is about 292.4022494607.

Adding to 25000122 its reverse (22100052), we get a palindrome (47100174).

The spelling of 25000122 in words is "twenty-five million, one hundred twenty-two", and thus it is an aban number.