53787434 has 4 divisors (see below), whose sum is σ = 80681154. Its totient is φ = 26893716.

The previous prime is 53787427. The next prime is 53787443. The reversal of 53787434 is 43478735.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43478735 = 5 ⋅8695747.

It can be written as a sum of positive squares in only one way, i.e., 48511225 + 5276209 = 6965^2 + 2297^2 .

It is a junction number, because it is equal to n+sod(n) for n = 53787391 and 53787400.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13446857 + ... + 13446860.

Almost surely, 2^53787434 is an apocalyptic number.

53787434 is a deficient number, since it is larger than the sum of its proper divisors (26893720).

53787434 is a wasteful number, since it uses less digits than its factorization.

53787434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26893719.

The product of its digits is 282240, while the sum is 41.

The square root of 53787434 is about 7333.9916825696. The cubic root of 53787434 is about 377.4797065243.

The spelling of 53787434 in words is "fifty-three million, seven hundred eighty-seven thousand, four hundred thirty-four".