53109091 has 16 divisors (see below), whose sum is σ = 62886400. Its totient is φ = 44823240.

The previous prime is 53109083. The next prime is 53109109. The reversal of 53109091 is 19090135.

It is not a de Polignac number, because 53109091 - 2³ = 53109083 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 (53109031) 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, 21826 + ... + 24136.

It is an arithmetic number, because the mean of its divisors is an integer number (3930400).

Almost surely, 2^53109091 is an apocalyptic number.

53109091 is a deficient number, since it is larger than the sum of its proper divisors (9777309).

53109091 is an equidigital number, since it uses as much as digits as its factorization.

53109091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2399 (or 2385 counting only the distinct ones).

The product of its (nonzero) digits is 1215, while the sum is 28.

The square root of 53109091 is about 7287.5984384432. The cubic root of 53109091 is about 375.8861201639.

The spelling of 53109091 in words is "fifty-three million, one hundred nine thousand, ninety-one".