55824961 has 4 divisors (see below), whose sum is σ = 56180692. Its totient is φ = 55469232.

The previous prime is 55824959. The next prime is 55824973. The reversal of 55824961 is 16942855.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7952400 + 47872561 = 2820^2 + 6919^2 .

It is a cyclic number.

It is not a de Polignac number, because 55824961 - 2¹ = 55824959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55824911) 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, 177630 + ... + 177943.

It is an arithmetic number, because the mean of its divisors is an integer number (14045173).

Almost surely, 2^55824961 is an apocalyptic number.

It is an amenable number.

55824961 is a deficient number, since it is larger than the sum of its proper divisors (355731).

55824961 is a wasteful number, since it uses less digits than its factorization.

55824961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355730.

The product of its digits is 86400, while the sum is 40.

The square root of 55824961 is about 7471.6103351286. The cubic root of 55824961 is about 382.1872043697.

The spelling of 55824961 in words is "fifty-five million, eight hundred twenty-four thousand, nine hundred sixty-one".