55788130 has 8 divisors (see below), whose sum is σ = 100418652. Its totient is φ = 22315248.

The previous prime is 55788121. The next prime is 55788143. The reversal of 55788130 is 3188755.

It can be written as a sum of positive squares in 2 ways, for example, as 55756089 + 32041 = 7467^2 + 179^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×55788130² = 6224630897793800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55788130.

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 3 ways as a sum of consecutive naturals, for example, 2789397 + ... + 2789416.

Almost surely, 2^55788130 is an apocalyptic number.

55788130 is a deficient number, since it is larger than the sum of its proper divisors (44630522).

55788130 is a wasteful number, since it uses less digits than its factorization.

55788130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5578820.

The product of its (nonzero) digits is 33600, while the sum is 37.

The square root of 55788130 is about 7469.1451987493. The cubic root of 55788130 is about 382.1031354426.

The spelling of 55788130 in words is "fifty-five million, seven hundred eighty-eight thousand, one hundred thirty".