51450533734554 has 32 divisors (see below), whose sum is σ = 114362968392000. Its totient is φ = 17145910564272.

The previous prime is 51450533734553. The next prime is 51450533734571. The reversal of 51450533734554 is 45543733505415.

51450533734554 is a `hidden beast` number, since 5 + 1 + 4 + 5 + 0 + 53 + 3 + 7 + 34 + 554 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 51450533734554.

It is not an unprimeable number, because it can be changed into a prime (51450533734553) 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, 118318389 + ... + 118752440.

It is an arithmetic number, because the mean of its divisors is an integer number (3573842762250).

Almost surely, 2^{51450533734554} is an apocalyptic number.

51450533734554 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

51450533734554 is an abundant number, since it is smaller than the sum of its proper divisors (62912434657446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51450533734554 is a wasteful number, since it uses less digits than its factorization.

51450533734554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237074859 (or 237074853 counting only the distinct ones).

The product of its (nonzero) digits is 37800000, while the sum is 54.

The spelling of 51450533734554 in words is "fifty-one trillion, four hundred fifty billion, five hundred thirty-three million, seven hundred thirty-four thousand, five hundred fifty-four".