55716361 has 8 divisors (see below), whose sum is σ = 59097384. Its totient is φ = 52346880.

The previous prime is 55716319. The next prime is 55716371. The reversal of 55716361 is 16361755.

It can be written as a sum of positive squares in 4 ways, for example, as 9734400 + 45981961 = 3120^2 + 6781^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 55716361 - 2⁷ = 55716233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55716371) 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, 8341 + ... + 13453.

It is an arithmetic number, because the mean of its divisors is an integer number (7387173).

Almost surely, 2^55716361 is an apocalyptic number.

It is an amenable number.

55716361 is a deficient number, since it is larger than the sum of its proper divisors (3381023).

55716361 is a wasteful number, since it uses less digits than its factorization.

55716361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5771.

The product of its digits is 18900, while the sum is 34.

The square root of 55716361 is about 7464.3392875726. The cubic root of 55716361 is about 381.9392121140.

The spelling of 55716361 in words is "fifty-five million, seven hundred sixteen thousand, three hundred sixty-one".