53362391 has 4 divisors (see below), whose sum is σ = 53379192. Its totient is φ = 53345592.

The previous prime is 53362381. The next prime is 53362403. The reversal of 53362391 is 19326335.

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

It is a cyclic number.

It is not a de Polignac number, because 53362391 - 2⁶ = 53362327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53362301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2021 + ... + 10526.

It is an arithmetic number, because the mean of its divisors is an integer number (13344798).

Almost surely, 2^53362391 is an apocalyptic number.

53362391 is a deficient number, since it is larger than the sum of its proper divisors (16801).

53362391 is a wasteful number, since it uses less digits than its factorization.

53362391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16800.

The product of its digits is 14580, while the sum is 32.

The square root of 53362391 is about 7304.9566049361. The cubic root of 53362391 is about 376.4827599193.

The spelling of 53362391 in words is "fifty-three million, three hundred sixty-two thousand, three hundred ninety-one".