53391874 has 4 divisors (see below), whose sum is σ = 80087814. Its totient is φ = 26695936.

The previous prime is 53391869. The next prime is 53391907. The reversal of 53391874 is 47819335.

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., 29626249 + 23765625 = 5443^2 + 4875^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13347967 + ... + 13347970.

Almost surely, 2^53391874 is an apocalyptic number.

53391874 is a deficient number, since it is larger than the sum of its proper divisors (26695940).

53391874 is a wasteful number, since it uses less digits than its factorization.

53391874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26695939.

The product of its digits is 90720, while the sum is 40.

The square root of 53391874 is about 7306.9743396292. The cubic root of 53391874 is about 376.5520833847.

The spelling of 53391874 in words is "fifty-three million, three hundred ninety-one thousand, eight hundred seventy-four".