53404311 has 16 divisors (see below), whose sum is σ = 72046080. Its totient is φ = 35185920.

The previous prime is 53404303. The next prime is 53404339. The reversal of 53404311 is 11340435.

It is not a de Polignac number, because 53404311 - 2³ = 53404303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53404111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151111 + ... + 151463.

It is an arithmetic number, because the mean of its divisors is an integer number (4502880).

Almost surely, 2^53404311 is an apocalyptic number.

53404311 is a deficient number, since it is larger than the sum of its proper divisors (18641769).

53404311 is a wasteful number, since it uses less digits than its factorization.

53404311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 53404311 is about 7307.8253263197. The cubic root of 53404311 is about 376.5813188864.

Adding to 53404311 its reverse (11340435), we get a palindrome (64744746).

The spelling of 53404311 in words is "fifty-three million, four hundred four thousand, three hundred eleven".