53751538 has 8 divisors (see below), whose sum is σ = 80844588. Its totient is φ = 26803344.

The previous prime is 53751517. The next prime is 53751563. The reversal of 53751538 is 83515735.

It can be written as a sum of positive squares in 2 ways, for example, as 51308569 + 2442969 = 7163^2 + 1563^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 53751497 and 53751506.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35281 + ... + 36772.

Almost surely, 2^53751538 is an apocalyptic number.

53751538 is a deficient number, since it is larger than the sum of its proper divisors (27093050).

53751538 is a wasteful number, since it uses less digits than its factorization.

53751538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72428.

The product of its digits is 63000, while the sum is 37.

The square root of 53751538 is about 7331.5440392867. The cubic root of 53751538 is about 377.3957152402.

It can be divided in two parts, 53751 and 538, that added together give a square (54289 = 233²).

The spelling of 53751538 in words is "fifty-three million, seven hundred fifty-one thousand, five hundred thirty-eight".