53166551 has 2 divisors, whose sum is σ = 53166552. Its totient is φ = 53166550.

The previous prime is 53166517. The next prime is 53166571. The reversal of 53166551 is 15566135.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53166551 - 2¹⁸ = 52904407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53166571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26583275 + 26583276.

It is an arithmetic number, because the mean of its divisors is an integer number (26583276).

Almost surely, 2^53166551 is an apocalyptic number.

53166551 is a deficient number, since it is larger than the sum of its proper divisors (1).

53166551 is an equidigital number, since it uses as much as digits as its factorization.

53166551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13500, while the sum is 32.

The square root of 53166551 is about 7291.5396865134. The cubic root of 53166551 is about 376.0216313759.

The spelling of 53166551 in words is "fifty-three million, one hundred sixty-six thousand, five hundred fifty-one".