53071738 has 4 divisors (see below), whose sum is σ = 79607610. Its totient is φ = 26535868.

The previous prime is 53071723. The next prime is 53071757. The reversal of 53071738 is 83717035.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83717035 = 5 ⋅16743407.

It can be written as a sum of positive squares in only one way, i.e., 36204289 + 16867449 = 6017^2 + 4107^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13267933 + ... + 13267936.

Almost surely, 2^53071738 is an apocalyptic number.

53071738 is a deficient number, since it is larger than the sum of its proper divisors (26535872).

53071738 is a wasteful number, since it uses less digits than its factorization.

53071738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26535871.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 53071738 is about 7285.0352092492. The cubic root of 53071738 is about 375.7979760129.

The spelling of 53071738 in words is "fifty-three million, seventy-one thousand, seven hundred thirty-eight".