51266355432552 has 96 divisors (see below), whose sum is σ = 149803261269480. Its totient is φ = 15745105451520.

The previous prime is 51266355432541. The next prime is 51266355432569. The reversal of 51266355432552 is 25523455366215.

51266355432552 is a `hidden beast` number, since 5 + 1 + 2 + 6 + 6 + 3 + 5 + 54 + 32 + 552 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 47869433663076 + 3396921769476 = 6918774^2 + 1843074^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50114463 + ... + 51127214.

Almost surely, 2^{51266355432552} is an apocalyptic number.

51266355432552 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

51266355432552 is an abundant number, since it is smaller than the sum of its proper divisors (98536905836928).

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

51266355432552 is a wasteful number, since it uses less digits than its factorization.

51266355432552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101242243 (or 101242236 counting only the distinct ones).

The product of its digits is 32400000, while the sum is 54.

The spelling of 51266355432552 in words is "fifty-one trillion, two hundred sixty-six billion, three hundred fifty-five million, four hundred thirty-two thousand, five hundred fifty-two".