53818712258 has 4 divisors (see below), whose sum is σ = 80728068390. Its totient is φ = 26909356128.

The previous prime is 53818712249. The next prime is 53818712261. The reversal of 53818712258 is 85221781835.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85221781835 = 5 ⋅17044356367.

It can be written as a sum of positive squares in only one way, i.e., 52131392329 + 1687319929 = 228323^2 + 41077^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13454678063 + ... + 13454678066.

Almost surely, 2^53818712258 is an apocalyptic number.

53818712258 is a deficient number, since it is larger than the sum of its proper divisors (26909356132).

53818712258 is a wasteful number, since it uses less digits than its factorization.

53818712258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26909356131.

The product of its digits is 1075200, while the sum is 50.

The spelling of 53818712258 in words is "fifty-three billion, eight hundred eighteen million, seven hundred twelve thousand, two hundred fifty-eight".