53909199 has 16 divisors (see below), whose sum is σ = 79991040. Its totient is φ = 35883000.

The previous prime is 53909197. The next prime is 53909201. The reversal of 53909199 is 99190935.

It is an interprime number because it is at equal distance from previous prime (53909197) and next prime (53909201).

It is not a de Polignac number, because 53909199 - 2¹ = 53909197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53909197) 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, 22824 + ... + 25074.

It is an arithmetic number, because the mean of its divisors is an integer number (4999440).

Almost surely, 2^53909199 is an apocalyptic number.

53909199 is a deficient number, since it is larger than the sum of its proper divisors (26081841).

53909199 is a wasteful number, since it uses less digits than its factorization.

53909199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3147 (or 3141 counting only the distinct ones).

The product of its (nonzero) digits is 98415, while the sum is 45.

The square root of 53909199 is about 7342.2884034884. The cubic root of 53909199 is about 377.7643403877.

The spelling of 53909199 in words is "fifty-three million, nine hundred nine thousand, one hundred ninety-nine".