53165503 has 2 divisors, whose sum is σ = 53165504. Its totient is φ = 53165502.

The previous prime is 53165473. The next prime is 53165509. The reversal of 53165503 is 30556135.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53165503 - 2⁵ = 53165471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53165509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26582751 + 26582752.

It is an arithmetic number, because the mean of its divisors is an integer number (26582752).

Almost surely, 2^53165503 is an apocalyptic number.

53165503 is a deficient number, since it is larger than the sum of its proper divisors (1).

53165503 is an equidigital number, since it uses as much as digits as its factorization.

53165503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6750, while the sum is 28.

The square root of 53165503 is about 7291.4678220506. The cubic root of 53165503 is about 376.0191606917.

The spelling of 53165503 in words is "fifty-three million, one hundred sixty-five thousand, five hundred three".