56505150 has 108 divisors (see below), whose sum is σ = 164607768. Its totient is φ = 13890240.

The previous prime is 56505131. The next prime is 56505151. The reversal of 56505150 is 5150565.

56505150 is a `hidden beast` number, since 5 + 6 + 505 + 150 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56505151) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 75679 + ... + 76421.

It is an arithmetic number, because the mean of its divisors is an integer number (1524146).

Almost surely, 2^56505150 is an apocalyptic number.

56505150 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 56505150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82303884).

56505150 is an abundant number, since it is smaller than the sum of its proper divisors (108102618).

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

56505150 is a wasteful number, since it uses less digits than its factorization.

56505150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787 (or 766 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 56505150 is about 7516.9907542846. The cubic root of 56505150 is about 383.7331723815.

The spelling of 56505150 in words is "fifty-six million, five hundred five thousand, one hundred fifty".