53512397 has 4 divisors (see below), whose sum is σ = 54958716. Its totient is φ = 52066080.

The previous prime is 53512391. The next prime is 53512399. The reversal of 53512397 is 79321535.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 41809156 + 11703241 = 6466^2 + 3421^2 .

It is a cyclic number.

It is not a de Polignac number, because 53512397 - 2¹⁴ = 53496013 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 (53512391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 723104 + ... + 723177.

It is an arithmetic number, because the mean of its divisors is an integer number (13739679).

Almost surely, 2^53512397 is an apocalyptic number.

It is an amenable number.

53512397 is a deficient number, since it is larger than the sum of its proper divisors (1446319).

53512397 is a wasteful number, since it uses less digits than its factorization.

53512397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446318.

The product of its digits is 28350, while the sum is 35.

The square root of 53512397 is about 7315.2168115511. The cubic root of 53512397 is about 376.8352043783.

The spelling of 53512397 in words is "fifty-three million, five hundred twelve thousand, three hundred ninety-seven".