53197465 has 4 divisors (see below), whose sum is σ = 63836964. Its totient is φ = 42557968.

The previous prime is 53197421. The next prime is 53197477. The reversal of 53197465 is 56479135.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56479135 = 5 ⋅11295827.

It can be written as a sum of positive squares in 2 ways, for example, as 10478169 + 42719296 = 3237^2 + 6536^2 .

It is a cyclic number.

It is not a de Polignac number, because 53197465 - 2¹⁵ = 53164697 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5319742 + ... + 5319751.

It is an arithmetic number, because the mean of its divisors is an integer number (15959241).

Almost surely, 2^53197465 is an apocalyptic number.

It is an amenable number.

53197465 is a deficient number, since it is larger than the sum of its proper divisors (10639499).

53197465 is a wasteful number, since it uses less digits than its factorization.

53197465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10639498.

The product of its digits is 113400, while the sum is 40.

The square root of 53197465 is about 7293.6592325115. The cubic root of 53197465 is about 376.0944972424.

The spelling of 53197465 in words is "fifty-three million, one hundred ninety-seven thousand, four hundred sixty-five".