25273625057 has 4 divisors (see below), whose sum is σ = 25273979796. Its totient is φ = 25273270320.

The previous prime is 25273625053. The next prime is 25273625071. The reversal of 25273625057 is 75052637252.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23139277456 + 2134347601 = 152116^2 + 46199^2 .

It is a cyclic number.

It is not a de Polignac number, because 25273625057 - 2² = 25273625053 is a prime.

It is a super-2 number, since 2×25273625057² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25273624999 and 25273625017.

It is not an unprimeable number, because it can be changed into a prime (25273625053) 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, 29294 + ... + 226727.

It is an arithmetic number, because the mean of its divisors is an integer number (6318494949).

Almost surely, 2^25273625057 is an apocalyptic number.

It is an amenable number.

25273625057 is a deficient number, since it is larger than the sum of its proper divisors (354739).

25273625057 is an equidigital number, since it uses as much as digits as its factorization.

25273625057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354738.

The product of its (nonzero) digits is 882000, while the sum is 44.

The spelling of 25273625057 in words is "twenty-five billion, two hundred seventy-three million, six hundred twenty-five thousand, fifty-seven".