53920311 has 16 divisors (see below), whose sum is σ = 77200128. Its totient is φ = 33353600.

The previous prime is 53920297. The next prime is 53920319. The reversal of 53920311 is 11302935.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 53920311 - 2⁹ = 53919799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53920319) 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, 3825 + ... + 11066.

It is an arithmetic number, because the mean of its divisors is an integer number (4825008).

Almost surely, 2^53920311 is an apocalyptic number.

53920311 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

53920311 is a deficient number, since it is larger than the sum of its proper divisors (23279817).

53920311 is a wasteful number, since it uses less digits than its factorization.

53920311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14982.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 53920311 is about 7343.0450768057. The cubic root of 53920311 is about 377.7902940842.

The spelling of 53920311 in words is "fifty-three million, nine hundred twenty thousand, three hundred eleven".