53423511 has 4 divisors (see below), whose sum is σ = 71231352. Its totient is φ = 35615672.

The previous prime is 53423507. The next prime is 53423519. The reversal of 53423511 is 11532435.

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 53423511 - 2² = 53423507 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53423519) 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, 8903916 + ... + 8903921.

It is an arithmetic number, because the mean of its divisors is an integer number (17807838).

Almost surely, 2^53423511 is an apocalyptic number.

53423511 is a deficient number, since it is larger than the sum of its proper divisors (17807841).

53423511 is a wasteful number, since it uses less digits than its factorization.

53423511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17807840.

The product of its digits is 1800, while the sum is 24.

The square root of 53423511 is about 7309.1388685672. The cubic root of 53423511 is about 376.6264431774.

Adding to 53423511 its reverse (11532435), we get a palindrome (64955946).

The spelling of 53423511 in words is "fifty-three million, four hundred twenty-three thousand, five hundred eleven".