53387233 has 2 divisors, whose sum is σ = 53387234. Its totient is φ = 53387232.

The previous prime is 53387221. The next prime is 53387251. The reversal of 53387233 is 33278335.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33965584 + 19421649 = 5828^2 + 4407^2 .

It is a cyclic number.

It is not a de Polignac number, because 53387233 - 2⁹ = 53386721 is a prime.

It is not a weakly prime, because it can be changed into another prime (53387533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26693616 + 26693617.

It is an arithmetic number, because the mean of its divisors is an integer number (26693617).

Almost surely, 2^53387233 is an apocalyptic number.

It is an amenable number.

53387233 is a deficient number, since it is larger than the sum of its proper divisors (1).

53387233 is an equidigital number, since it uses as much as digits as its factorization.

53387233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 34.

The square root of 53387233 is about 7306.6567594215. The cubic root of 53387233 is about 376.5411726803.

The spelling of 53387233 in words is "fifty-three million, three hundred eighty-seven thousand, two hundred thirty-three".