55828740 has 48 divisors (see below), whose sum is σ = 170533440. Its totient is φ = 13534080.

The previous prime is 55828687. The next prime is 55828753. The reversal of 55828740 is 4782855.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41635 + ... + 42954.

It is an arithmetic number, because the mean of its divisors is an integer number (3552780).

Almost surely, 2^55828740 is an apocalyptic number.

It is an amenable number.

55828740 is an abundant number, since it is smaller than the sum of its proper divisors (114704700).

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

55828740 is a wasteful number, since it uses less digits than its factorization.

55828740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84612 (or 84610 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 39.

The square root of 55828740 is about 7471.8632214462. The cubic root of 55828740 is about 382.1958280679.

The spelling of 55828740 in words is "fifty-five million, eight hundred twenty-eight thousand, seven hundred forty".