53018905 has 8 divisors (see below), whose sum is σ = 63979200. Its totient is φ = 42177456.

The previous prime is 53018899. The next prime is 53018923. The reversal of 53018905 is 50981035.

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

It is a cyclic number.

It is not a de Polignac number, because 53018905 - 2¹⁵ = 52986137 is a prime.

It is a super-2 number, since 2×53018905² = 5622008574798050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28725 + ... + 30514.

It is an arithmetic number, because the mean of its divisors is an integer number (7997400).

Almost surely, 2^53018905 is an apocalyptic number.

It is an amenable number.

53018905 is a deficient number, since it is larger than the sum of its proper divisors (10960295).

53018905 is a wasteful number, since it uses less digits than its factorization.

53018905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59423.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 53018905 is about 7281.4081742476. The cubic root of 53018905 is about 375.6732321142.

The spelling of 53018905 in words is "fifty-three million, eighteen thousand, nine hundred five".