53990111 has 6 divisors (see below), whose sum is σ = 62804880. Its totient is φ = 46277196.

The previous prime is 53990107. The next prime is 53990117. The reversal of 53990111 is 11109935.

It is not a de Polignac number, because 53990111 - 2² = 53990107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53990117) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 550871 + ... + 550968.

It is an arithmetic number, because the mean of its divisors is an integer number (10467480).

Almost surely, 2^53990111 is an apocalyptic number.

53990111 is a deficient number, since it is larger than the sum of its proper divisors (8814769).

53990111 is a wasteful number, since it uses less digits than its factorization.

53990111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101853 (or 1101846 counting only the distinct ones).

The product of its (nonzero) digits is 1215, while the sum is 29.

The square root of 53990111 is about 7347.7963363174. The cubic root of 53990111 is about 377.9532406724.

The spelling of 53990111 in words is "fifty-three million, nine hundred ninety thousand, one hundred eleven".