25890730773 has 4 divisors (see below), whose sum is σ = 34520974368. Its totient is φ = 17260487180.

The previous prime is 25890730763. The next prime is 25890730783. The reversal of 25890730773 is 37703709852.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (25890730763) and next prime (25890730783).

It is a cyclic number.

It is not a de Polignac number, because 25890730773 - 2¹⁶ = 25890665237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25890730763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4315121793 + ... + 4315121798.

It is an arithmetic number, because the mean of its divisors is an integer number (8630243592).

Almost surely, 2^25890730773 is an apocalyptic number.

It is an amenable number.

25890730773 is a deficient number, since it is larger than the sum of its proper divisors (8630243595).

25890730773 is an equidigital number, since it uses as much as digits as its factorization.

25890730773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8630243594.

The product of its (nonzero) digits is 2222640, while the sum is 51.

The spelling of 25890730773 in words is "twenty-five billion, eight hundred ninety million, seven hundred thirty thousand, seven hundred seventy-three".