53501911 has 2 divisors, whose sum is σ = 53501912. Its totient is φ = 53501910.

The previous prime is 53501909. The next prime is 53501923. The reversal of 53501911 is 11910535.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53501911 - 2¹ = 53501909 is a prime.

Together with 53501909, it forms a pair of twin primes.

It is the 7315-th Hogben number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53501951) by changing a digit.

It is a nontrivial repunit in base 7314.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26750955 + 26750956.

It is an arithmetic number, because the mean of its divisors is an integer number (26750956).

Almost surely, 2^53501911 is an apocalyptic number.

53501911 is a deficient number, since it is larger than the sum of its proper divisors (1).

53501911 is an equidigital number, since it uses as much as digits as its factorization.

53501911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 675, while the sum is 25.

The square root of 53501911 is about 7314.5000512680. The cubic root of 53501911 is about 376.8105885739.

The spelling of 53501911 in words is "fifty-three million, five hundred one thousand, nine hundred eleven".