56001330 has 96 divisors (see below), whose sum is σ = 181554048. Its totient is φ = 11635200.

The previous prime is 56001329. The next prime is 56001359. The reversal of 56001330 is 3310065.

It is a super-2 number, since 2×56001330² = 6272297923537800, which contains 22 as substring.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2890 + ... + 10970.

It is an arithmetic number, because the mean of its divisors is an integer number (1891188).

Almost surely, 2^56001330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56001330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90777024).

56001330 is an abundant number, since it is smaller than the sum of its proper divisors (125552718).

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

56001330 is a wasteful number, since it uses less digits than its factorization.

56001330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8112 (or 8109 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 56001330 is about 7483.4036373832. The cubic root of 56001330 is about 382.5892653382.

Adding to 56001330 its reverse (3310065), we get a palindrome (59311395).

The spelling of 56001330 in words is "fifty-six million, one thousand, three hundred thirty".