53197147 has 4 divisors (see below), whose sum is σ = 54913216. Its totient is φ = 51481080.

The previous prime is 53197141. The next prime is 53197153. The reversal of 53197147 is 74179135.

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

It is an interprime number because it is at equal distance from previous prime (53197141) and next prime (53197153).

It is not a de Polignac number, because 53197147 - 2¹¹ = 53195099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53197141) 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, 857988 + ... + 858049.

It is an arithmetic number, because the mean of its divisors is an integer number (13728304).

Almost surely, 2^53197147 is an apocalyptic number.

53197147 is a deficient number, since it is larger than the sum of its proper divisors (1716069).

53197147 is a wasteful number, since it uses less digits than its factorization.

53197147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716068.

The product of its digits is 26460, while the sum is 37.

The square root of 53197147 is about 7293.6374327218. The cubic root of 53197147 is about 376.0937478440.

The spelling of 53197147 in words is "fifty-three million, one hundred ninety-seven thousand, one hundred forty-seven".