25122042452 has 12 divisors (see below), whose sum is σ = 47345387796. Its totient is φ = 11594788800.

The previous prime is 25122042443. The next prime is 25122042457. The reversal of 25122042452 is 25424022152.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2322854416 + 22799188036 = 48196^2 + 150994^2 .

It is a super-2 number, since 2×25122042452² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25122042457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241558049 + ... + 241558152.

It is an arithmetic number, because the mean of its divisors is an integer number (3945448983).

Almost surely, 2^25122042452 is an apocalyptic number.

It is an amenable number.

25122042452 is a deficient number, since it is larger than the sum of its proper divisors (22223345344).

25122042452 is a wasteful number, since it uses less digits than its factorization.

25122042452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483116218 (or 483116216 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

The spelling of 25122042452 in words is "twenty-five billion, one hundred twenty-two million, forty-two thousand, four hundred fifty-two".