55613017 has 4 divisors (see below), whose sum is σ = 55638756. Its totient is φ = 55587280.

The previous prime is 55613009. The next prime is 55613021. The reversal of 55613017 is 71031655.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71031655 = 5 ⋅14206331.

It can be written as a sum of positive squares in 2 ways, for example, as 16475481 + 39137536 = 4059^2 + 6256^2 .

It is a cyclic number.

It is not a de Polignac number, because 55613017 - 2³ = 55613009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55613027) 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, 9298 + ... + 14059.

It is an arithmetic number, because the mean of its divisors is an integer number (13909689).

Almost surely, 2^55613017 is an apocalyptic number.

It is an amenable number.

55613017 is a deficient number, since it is larger than the sum of its proper divisors (25739).

55613017 is a wasteful number, since it uses less digits than its factorization.

55613017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25738.

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 55613017 is about 7457.4135596734. The cubic root of 55613017 is about 381.7029227225.

The spelling of 55613017 in words is "fifty-five million, six hundred thirteen thousand, seventeen".