53890816 has 144 divisors (see below), whose sum is σ = 136866240. Its totient is φ = 20643840.

The previous prime is 53890813. The next prime is 53890819. The reversal of 53890816 is 61809835.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (53890813) and next prime (53890819).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53890813) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 883426 + ... + 883486.

It is an arithmetic number, because the mean of its divisors is an integer number (950460).

Almost surely, 2^53890816 is an apocalyptic number.

53890816 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53890816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68433120).

53890816 is an abundant number, since it is smaller than the sum of its proper divisors (82975424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53890816 is a wasteful number, since it uses less digits than its factorization.

53890816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 53890816 is about 7341.0364390868. The cubic root of 53890816 is about 377.7213963788.

The spelling of 53890816 in words is "fifty-three million, eight hundred ninety thousand, eight hundred sixteen".