25593942958 has 4 divisors (see below), whose sum is σ = 38390914440. Its totient is φ = 12796971478.

The previous prime is 25593942943. The next prime is 25593943061. The reversal of 25593942958 is 85924939552.

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

It is a super-2 number, since 2×25593942958² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25593942896 and 25593942905.

It is a congruent number.

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, 6398485738 + ... + 6398485741.

It is an arithmetic number, because the mean of its divisors is an integer number (9597728610).

Almost surely, 2^25593942958 is an apocalyptic number.

25593942958 is a deficient number, since it is larger than the sum of its proper divisors (12796971482).

25593942958 is a wasteful number, since it uses less digits than its factorization.

25593942958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12796971481.

The product of its digits is 34992000, while the sum is 61.

The spelling of 25593942958 in words is "twenty-five billion, five hundred ninety-three million, nine hundred forty-two thousand, nine hundred fifty-eight".