51420355512824 has 64 divisors (see below), whose sum is σ = 102600799027200. Its totient is φ = 24075615424000.

The previous prime is 51420355512809. The next prime is 51420355512829. The reversal of 51420355512824 is 42821555302415.

It is a happy number.

It is a super-2 number, since 2×51420355512824² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51420355512829) 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, 36724889 + ... + 38099319.

It is an arithmetic number, because the mean of its divisors is an integer number (1603137484800).

Almost surely, 2^{51420355512824} is an apocalyptic number.

It is an amenable number.

51420355512824 is a deficient number, since it is larger than the sum of its proper divisors (51180443514376).

51420355512824 is a wasteful number, since it uses less digits than its factorization.

51420355512824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375844 (or 1375840 counting only the distinct ones).

The product of its (nonzero) digits is 1920000, while the sum is 47.

The spelling of 51420355512824 in words is "fifty-one trillion, four hundred twenty billion, three hundred fifty-five million, five hundred twelve thousand, eight hundred twenty-four".