53191039 has 4 divisors (see below), whose sum is σ = 58026600. Its totient is φ = 48355480.

The previous prime is 53191031. The next prime is 53191049. The reversal of 53191039 is 93019135.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53191039 - 2³ = 53191031 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53191039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53191031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2417764 + ... + 2417785.

It is an arithmetic number, because the mean of its divisors is an integer number (14506650).

Almost surely, 2^53191039 is an apocalyptic number.

53191039 is a deficient number, since it is larger than the sum of its proper divisors (4835561).

53191039 is a wasteful number, since it uses less digits than its factorization.

53191039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4835560.

The product of its (nonzero) digits is 3645, while the sum is 31.

The square root of 53191039 is about 7293.2186995866. The cubic root of 53191039 is about 376.0793531589.

The spelling of 53191039 in words is "fifty-three million, one hundred ninety-one thousand, thirty-nine".