53518879 has 2 divisors, whose sum is σ = 53518880. Its totient is φ = 53518878.

The previous prime is 53518859. The next prime is 53518937. The reversal of 53518879 is 97881535.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53518879 - 2¹³ = 53510687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53518849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26759439 + 26759440.

It is an arithmetic number, because the mean of its divisors is an integer number (26759440).

Almost surely, 2^53518879 is an apocalyptic number.

53518879 is a deficient number, since it is larger than the sum of its proper divisors (1).

53518879 is an equidigital number, since it uses as much as digits as its factorization.

53518879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 46.

The square root of 53518879 is about 7315.6598472045. The cubic root of 53518879 is about 376.8504192151.

It can be divided in two parts, 535 and 18879, that multiplied together give a triangular number (10100265 = T₄₄₉₄).

The spelling of 53518879 in words is "fifty-three million, five hundred eighteen thousand, eight hundred seventy-nine".