53173738 has 4 divisors (see below), whose sum is σ = 79760610. Its totient is φ = 26586868.

The previous prime is 53173727. The next prime is 53173741. The reversal of 53173738 is 83737135.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 48818169 + 4355569 = 6987^2 + 2087^2 .

It is a junction number, because it is equal to n+sod(n) for n = 53173697 and 53173706.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13293433 + ... + 13293436.

Almost surely, 2^53173738 is an apocalyptic number.

53173738 is a deficient number, since it is larger than the sum of its proper divisors (26586872).

53173738 is a wasteful number, since it uses less digits than its factorization.

53173738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26586871.

The product of its digits is 52920, while the sum is 37.

The square root of 53173738 is about 7292.0325012989. The cubic root of 53173738 is about 376.0385740190.

The spelling of 53173738 in words is "fifty-three million, one hundred seventy-three thousand, seven hundred thirty-eight".