56540000 has 120 divisors (see below), whose sum is σ = 152332488. Its totient is φ = 20480000.

The previous prime is 56539999. The next prime is 56540047. The reversal of 56540000 is 4565.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 219872 + ... + 220128.

Almost surely, 2^56540000 is an apocalyptic number.

56540000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56540000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76166244).

56540000 is an abundant number, since it is smaller than the sum of its proper divisors (95792488).

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

56540000 is a wasteful number, since it uses less digits than its factorization.

56540000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298 (or 275 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 56540000 is about 7519.3084788430. The cubic root of 56540000 is about 383.8120463289.

Adding to 56540000 its reverse (4565), we get a palindrome (56544565).

The spelling of 56540000 in words is "fifty-six million, five hundred forty thousand".