56995702558 has 4 divisors (see below), whose sum is σ = 85493553840. Its totient is φ = 28497851278.

The previous prime is 56995702549. The next prime is 56995702597. The reversal of 56995702558 is 85520759965.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85520759965 = 5 ⋅17104151993.

It is a super-2 number, since 2×56995702558² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56995702496 and 56995702505.

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, 14248925638 + ... + 14248925641.

It is an arithmetic number, because the mean of its divisors is an integer number (21373388460).

Almost surely, 2^56995702558 is an apocalyptic number.

56995702558 is a deficient number, since it is larger than the sum of its proper divisors (28497851282).

56995702558 is a wasteful number, since it uses less digits than its factorization.

56995702558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28497851281.

The product of its (nonzero) digits is 34020000, while the sum is 61.

The spelling of 56995702558 in words is "fifty-six billion, nine hundred ninety-five million, seven hundred two thousand, five hundred fifty-eight".