50855580 has 96 divisors (see below), whose sum is σ = 162146880. Its totient is φ = 13224960.

The previous prime is 50855573. The next prime is 50855587. The reversal of 50855580 is 8555805.

50855580 = 1108² + 1109² + ... + 1147².

It is an interprime number because it is at equal distance from previous prime (50855573) and next prime (50855587).

It is a super-3 number, since 3×50855580³ (a number of 24 digits) contains 333 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50855587) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20992 + ... + 23288.

It is an arithmetic number, because the mean of its divisors is an integer number (1689030).

Almost surely, 2^50855580 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 50855580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81073440).

50855580 is an abundant number, since it is smaller than the sum of its proper divisors (111291300).

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

50855580 is a wasteful number, since it uses less digits than its factorization.

50855580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2356 (or 2348 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 36.

The square root of 50855580 is about 7131.3098376105. The cubic root of 50855580 is about 370.4925993047.

The spelling of 50855580 in words is "fifty million, eight hundred fifty-five thousand, five hundred eighty".