55580783 has 4 divisors (see below), whose sum is σ = 55606248. Its totient is φ = 55555320.

The previous prime is 55580761. The next prime is 55580807. The reversal of 55580783 is 38708555.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38708555 = 5 ⋅7741711.

It is a cyclic number.

It is not a de Polignac number, because 55580783 - 2¹² = 55576687 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55580783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55580383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9116 + ... + 13937.

It is an arithmetic number, because the mean of its divisors is an integer number (13901562).

Almost surely, 2^55580783 is an apocalyptic number.

55580783 is a deficient number, since it is larger than the sum of its proper divisors (25465).

55580783 is a wasteful number, since it uses less digits than its factorization.

55580783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25464.

The product of its (nonzero) digits is 168000, while the sum is 41.

The square root of 55580783 is about 7455.2520413464. The cubic root of 55580783 is about 381.6291618743.

The spelling of 55580783 in words is "fifty-five million, five hundred eighty thousand, seven hundred eighty-three".