51274100533 has 8 divisors (see below), whose sum is σ = 53123419136. Its totient is φ = 49436989200.

The previous prime is 51274100489. The next prime is 51274100543. The reversal of 51274100533 is 33500147215.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51274100533 - 2⁹ = 51274100021 is a prime.

It is a super-3 number, since 3×51274100533³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51274100495 and 51274100504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51274100543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3043266 + ... + 3060067.

It is an arithmetic number, because the mean of its divisors is an integer number (6640427392).

Almost surely, 2^51274100533 is an apocalyptic number.

It is an amenable number.

51274100533 is a deficient number, since it is larger than the sum of its proper divisors (1849318603).

51274100533 is a wasteful number, since it uses less digits than its factorization.

51274100533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6103635.

The product of its (nonzero) digits is 12600, while the sum is 31.

Adding to 51274100533 its reverse (33500147215), we get a palindrome (84774247748).

The spelling of 51274100533 in words is "fifty-one billion, two hundred seventy-four million, one hundred thousand, five hundred thirty-three".