56087420 has 24 divisors (see below), whose sum is σ = 124712784. Its totient is φ = 21115136.

The previous prime is 56087417. The next prime is 56087429. The reversal of 56087420 is 2478065.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56087429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82142 + ... + 82821.

It is an arithmetic number, because the mean of its divisors is an integer number (5196366).

Almost surely, 2^56087420 is an apocalyptic number.

It is an amenable number.

56087420 is an abundant number, since it is smaller than the sum of its proper divisors (68625364).

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

56087420 is a wasteful number, since it uses less digits than its factorization.

56087420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164989 (or 164987 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 56087420 is about 7489.1534902150. The cubic root of 56087420 is about 382.7852145317.

The spelling of 56087420 in words is "fifty-six million, eighty-seven thousand, four hundred twenty".