56001420 has 72 divisors (see below), whose sum is σ = 170504880. Its totient is φ = 14878080.

The previous prime is 56001401. The next prime is 56001431. The reversal of 56001420 is 2410065.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 56001393 and 56001402.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75411 + ... + 76149.

Almost surely, 2^56001420 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 56001420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85252440).

56001420 is an abundant number, since it is smaller than the sum of its proper divisors (114503460).

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

56001420 is a wasteful number, since it uses less digits than its factorization.

56001420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175 (or 1170 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 56001420 is about 7483.4096506873. The cubic root of 56001420 is about 382.5894702918.

Adding to 56001420 its reverse (2410065), we get a palindrome (58411485).

The spelling of 56001420 in words is "fifty-six million, one thousand, four hundred twenty".