53420817 has 8 divisors (see below), whose sum is σ = 75417696. Its totient is φ = 33518912.

The previous prime is 53420803. The next prime is 53420833. The reversal of 53420817 is 71802435.

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 53420817 - 2⁶ = 53420753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53420867) 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, 523683 + ... + 523784.

It is an arithmetic number, because the mean of its divisors is an integer number (9427212).

Almost surely, 2^53420817 is an apocalyptic number.

It is an amenable number.

53420817 is a deficient number, since it is larger than the sum of its proper divisors (21996879).

53420817 is a wasteful number, since it uses less digits than its factorization.

53420817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047487.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 53420817 is about 7308.9545764083. The cubic root of 53420817 is about 376.6201123274.

The spelling of 53420817 in words is "fifty-three million, four hundred twenty thousand, eight hundred seventeen".