52251746450 has 18 divisors (see below), whose sum is σ = 97191254901. Its totient is φ = 20900052040.

The previous prime is 52251746447. The next prime is 52251746467. The reversal of 52251746450 is 5464715225.

It can be written as a sum of positive squares in 2 ways, for example, as 51206711521 + 1045034929 = 226289^2 + 32327^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=161635.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52251746398 and 52251746407.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1600187 + ... + 1632513.

Almost surely, 2^52251746450 is an apocalyptic number.

52251746450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

52251746450 is a deficient number, since it is larger than the sum of its proper divisors (44939508451).

52251746450 is an frugal number, since it uses more digits than its factorization.

52251746450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64666 (or 32334 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 41.

The spelling of 52251746450 in words is "fifty-two billion, two hundred fifty-one million, seven hundred forty-six thousand, four hundred fifty".