53945318 has 48 divisors (see below), whose sum is σ = 100204800. Its totient is φ = 21326976.

The previous prime is 53945291. The next prime is 53945401. The reversal of 53945318 is 81354935.

It is a happy number.

It is a super-2 number, since 2×53945318² = 5820194668242248, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 270983 + ... + 271181.

It is an arithmetic number, because the mean of its divisors is an integer number (2087600).

Almost surely, 2^53945318 is an apocalyptic number.

53945318 is a deficient number, since it is larger than the sum of its proper divisors (46259482).

53945318 is a wasteful number, since it uses less digits than its factorization.

53945318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309 (or 292 counting only the distinct ones).

The product of its digits is 64800, while the sum is 38.

The square root of 53945318 is about 7344.7476471285. The cubic root of 53945318 is about 377.8486885407.

The spelling of 53945318 in words is "fifty-three million, nine hundred forty-five thousand, three hundred eighteen".