53018782 has 4 divisors (see below), whose sum is σ = 79528176. Its totient is φ = 26509390.

The previous prime is 53018741. The next prime is 53018783. The reversal of 53018782 is 28781035.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28781035 = 5 ⋅5756207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53018783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13254694 + ... + 13254697.

It is an arithmetic number, because the mean of its divisors is an integer number (19882044).

Almost surely, 2^53018782 is an apocalyptic number.

53018782 is a deficient number, since it is larger than the sum of its proper divisors (26509394).

53018782 is a wasteful number, since it uses less digits than its factorization.

53018782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26509393.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 53018782 is about 7281.3997280743. The cubic root of 53018782 is about 375.6729416025.

The spelling of 53018782 in words is "fifty-three million, eighteen thousand, seven hundred eighty-two".