53656534474 has 4 divisors (see below), whose sum is σ = 80484801714. Its totient is φ = 26828267236.

The previous prime is 53656534457. The next prime is 53656534523. The reversal of 53656534474 is 47443565635.

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: 47443565635 = 5 ⋅9488713127.

It can be written as a sum of positive squares in only one way, i.e., 48315117249 + 5341417225 = 219807^2 + 73085^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13414133617 + ... + 13414133620.

Almost surely, 2^53656534474 is an apocalyptic number.

53656534474 is a deficient number, since it is larger than the sum of its proper divisors (26828267240).

53656534474 is a wasteful number, since it uses less digits than its factorization.

53656534474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26828267239.

The product of its digits is 18144000, while the sum is 52.

The spelling of 53656534474 in words is "fifty-three billion, six hundred fifty-six million, five hundred thirty-four thousand, four hundred seventy-four".