55817061 has 8 divisors (see below), whose sum is σ = 74463264. Its totient is φ = 37191120.

The previous prime is 55817029. The next prime is 55817063. The reversal of 55817061 is 16071855.

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

It is not a de Polignac number, because 55817061 - 2⁵ = 55817029 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55817063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3375 + ... + 11091.

It is an arithmetic number, because the mean of its divisors is an integer number (9307908).

Almost surely, 2^55817061 is an apocalyptic number.

It is an amenable number.

55817061 is a deficient number, since it is larger than the sum of its proper divisors (18646203).

55817061 is a wasteful number, since it uses less digits than its factorization.

55817061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10131.

The product of its (nonzero) digits is 8400, while the sum is 33.

The square root of 55817061 is about 7471.0816485968. The cubic root of 55817061 is about 382.1691752701.

Adding to 55817061 its product of nonzero digits (8400), we get a triangular number (55825461 = T₁₀₅₆₆).

The spelling of 55817061 in words is "fifty-five million, eight hundred seventeen thousand, sixty-one".