53890056 has 128 divisors (see below), whose sum is σ = 167990400. Its totient is φ = 15863040.

The previous prime is 53890009. The next prime is 53890103. The reversal of 53890056 is 65009835.

It is an interprime number because it is at equal distance from previous prime (53890009) and next prime (53890103).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 53890056.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87606 + ... + 88218.

It is an arithmetic number, because the mean of its divisors is an integer number (1312425).

Almost surely, 2^53890056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53890056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83995200).

53890056 is an abundant number, since it is smaller than the sum of its proper divisors (114100344).

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

53890056 is a wasteful number, since it uses less digits than its factorization.

53890056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676 (or 666 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 53890056 is about 7340.9846750964. The cubic root of 53890056 is about 377.7196207540.

The spelling of 53890056 in words is "fifty-three million, eight hundred ninety thousand, fifty-six".