25425810052 has 6 divisors (see below), whose sum is σ = 44495167598. Its totient is φ = 12712905024.

The previous prime is 25425810029. The next prime is 25425810073. The reversal of 25425810052 is 25001852452.

It can be written as a sum of positive squares in only one way, i.e., 24666587136 + 759222916 = 157056^2 + 27554^2 .

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 as a sum of consecutive naturals, namely, 3178226253 + ... + 3178226260.

Almost surely, 2^25425810052 is an apocalyptic number.

It is an amenable number.

25425810052 is a deficient number, since it is larger than the sum of its proper divisors (19069357546).

25425810052 is a wasteful number, since it uses less digits than its factorization.

25425810052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6356452517 (or 6356452515 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 34.

The spelling of 25425810052 in words is "twenty-five billion, four hundred twenty-five million, eight hundred ten thousand, fifty-two".