53314781 has 8 divisors (see below), whose sum is σ = 58273824. Its totient is φ = 48478320.

The previous prime is 53314721. The next prime is 53314787. The reversal of 53314781 is 18741335.

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 53314781 - 2⁶ = 53314717 is a prime.

It is a super-2 number, since 2×53314781² = 5684931746155922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53314787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29735 + ... + 31476.

It is an arithmetic number, because the mean of its divisors is an integer number (7284228).

Almost surely, 2^53314781 is an apocalyptic number.

It is an amenable number.

53314781 is a deficient number, since it is larger than the sum of its proper divisors (4959043).

53314781 is a wasteful number, since it uses less digits than its factorization.

53314781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61291.

The product of its digits is 10080, while the sum is 32.

The square root of 53314781 is about 7301.6971314894. The cubic root of 53314781 is about 376.3707604554.

The spelling of 53314781 in words is "fifty-three million, three hundred fourteen thousand, seven hundred eighty-one".