51553385495 has 4 divisors (see below), whose sum is σ = 61864062600. Its totient is φ = 41242708392.

The previous prime is 51553385473. The next prime is 51553385509. The reversal of 51553385495 is 59458335515.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59458335515 = 5 ⋅11891667103.

It is a cyclic number.

It is not a de Polignac number, because 51553385495 - 2²² = 51549191191 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5155338545 + ... + 5155338554.

It is an arithmetic number, because the mean of its divisors is an integer number (15466015650).

Almost surely, 2^51553385495 is an apocalyptic number.

51553385495 is a deficient number, since it is larger than the sum of its proper divisors (10310677105).

51553385495 is a wasteful number, since it uses less digits than its factorization.

51553385495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10310677104.

The product of its digits is 8100000, while the sum is 53.

The spelling of 51553385495 in words is "fifty-one billion, five hundred fifty-three million, three hundred eighty-five thousand, four hundred ninety-five".