25121034 has 12 divisors (see below), whose sum is σ = 54428946. Its totient is φ = 8373672.

The previous prime is 25121011. The next prime is 25121093. The reversal of 25121034 is 43012152.

It can be written as a sum of positive squares in only one way, i.e., 17015625 + 8105409 = 4125^2 + 2847^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1395613 = 25121034 / (2 + 5 + 1 + 2 + 1 + 0 + 3 + 4).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25120998 and 25121016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 697789 + ... + 697824.

Almost surely, 2^25121034 is an apocalyptic number.

25121034 is an abundant number, since it is smaller than the sum of its proper divisors (29307912).

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

25121034 is a wasteful number, since it uses less digits than its factorization.

25121034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395621 (or 1395618 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 25121034 is about 5012.0887861250. The cubic root of 25121034 is about 292.8728884427.

Adding to 25121034 its reverse (43012152), we get a palindrome (68133186).

The spelling of 25121034 in words is "twenty-five million, one hundred twenty-one thousand, thirty-four".