56212380 has 120 divisors (see below), whose sum is σ = 201572448. Its totient is φ = 12845952.

The previous prime is 56212379. The next prime is 56212381. The reversal of 56212380 is 8321265.

56212380 is a `hidden beast` number, since 5 + 621 + 2 + 38 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (56212379) and next prime (56212381).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56212381) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8862 + ... + 13818.

Almost surely, 2^56212380 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 56212380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100786224).

56212380 is an abundant number, since it is smaller than the sum of its proper divisors (145360068).

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

56212380 is a wasteful number, since it uses less digits than its factorization.

56212380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4985 (or 4974 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 56212380 is about 7497.4915805221. The cubic root of 56212380 is about 383.0692791891.

It can be divided in two parts, 5621 and 2380, that added together give a triangular number (8001 = T₁₂₆).

The spelling of 56212380 in words is "fifty-six million, two hundred twelve thousand, three hundred eighty".