51473246553 has 16 divisors (see below), whose sum is σ = 76969344960. Its totient is φ = 33994790208.

The previous prime is 51473246521. The next prime is 51473246563. The reversal of 51473246553 is 35564237415.

51473246553 is a `hidden beast` number, since 5 + 1 + 4 + 73 + 24 + 6 + 553 = 666.

It is not a de Polignac number, because 51473246553 - 2⁵ = 51473246521 is a prime.

It is a super-2 number, since 2×51473246553² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51473246499 and 51473246508.

It is not an unprimeable number, because it can be changed into a prime (51473246563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8905600 + ... + 8911377.

It is an arithmetic number, because the mean of its divisors is an integer number (4810584060).

Almost surely, 2^51473246553 is an apocalyptic number.

It is an amenable number.

51473246553 is a deficient number, since it is larger than the sum of its proper divisors (25496098407).

51473246553 is a wasteful number, since it uses less digits than its factorization.

51473246553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17817093 (or 17817087 counting only the distinct ones).

The product of its digits is 1512000, while the sum is 45.

The spelling of 51473246553 in words is "fifty-one billion, four hundred seventy-three million, two hundred forty-six thousand, five hundred fifty-three".