25073937828 has 60 divisors (see below), whose sum is σ = 66026797452. Its totient is φ = 8296957440.

The previous prime is 25073937817. The next prime is 25073937839. The reversal of 25073937828 is 82873937052.

It is an interprime number because it is at equal distance from previous prime (25073937817) and next prime (25073937839).

It can be written as a sum of positive squares in 2 ways, for example, as 6241316004 + 18832621824 = 79002^2 + 137232^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 238053 + ... + 326828.

Almost surely, 2^25073937828 is an apocalyptic number.

It is an amenable number.

25073937828 is an abundant number, since it is smaller than the sum of its proper divisors (40952859624).

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

25073937828 is a wasteful number, since it uses less digits than its factorization.

25073937828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565034 (or 565023 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 25073937828 in words is "twenty-five billion, seventy-three million, nine hundred thirty-seven thousand, eight hundred twenty-eight".