53555858 has 8 divisors (see below), whose sum is σ = 80382540. Its totient is φ = 26761680.

The previous prime is 53555819. The next prime is 53555861. The reversal of 53555858 is 85855535.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 41770369 + 11785489 = 6463^2 + 3433^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×53555858² = 5736459852232328, which contains 22 as substring.

It is an unprimeable number.

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, 3473 + ... + 10916.

Almost surely, 2^53555858 is an apocalyptic number.

53555858 is a deficient number, since it is larger than the sum of its proper divisors (26826682).

53555858 is a wasteful number, since it uses less digits than its factorization.

53555858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16252.

The product of its digits is 600000, while the sum is 44.

The square root of 53555858 is about 7318.1867972880. The cubic root of 53555858 is about 376.9371944712.

The spelling of 53555858 in words is "fifty-three million, five hundred fifty-five thousand, eight hundred fifty-eight".