53385091 has 4 divisors (see below), whose sum is σ = 54520992. Its totient is φ = 52249192.

The previous prime is 53385077. The next prime is 53385097. The reversal of 53385091 is 19058335.

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 53385091 - 2⁷ = 53384963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53385097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 567880 + ... + 567973.

It is an arithmetic number, because the mean of its divisors is an integer number (13630248).

Almost surely, 2^53385091 is an apocalyptic number.

53385091 is a deficient number, since it is larger than the sum of its proper divisors (1135901).

53385091 is a wasteful number, since it uses less digits than its factorization.

53385091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135900.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 53385091 is about 7306.5101792853. The cubic root of 53385091 is about 376.5361367573.

The spelling of 53385091 in words is "fifty-three million, three hundred eighty-five thousand, ninety-one".