55260517 has 4 divisors (see below), whose sum is σ = 59511340. Its totient is φ = 51009696.

The previous prime is 55260481. The next prime is 55260533. The reversal of 55260517 is 71506255.

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 11621281 + 43639236 = 3409^2 + 6606^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55260517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55260017) 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, 2125392 + ... + 2125417.

It is an arithmetic number, because the mean of its divisors is an integer number (14877835).

Almost surely, 2^55260517 is an apocalyptic number.

It is an amenable number.

55260517 is a deficient number, since it is larger than the sum of its proper divisors (4250823).

55260517 is a wasteful number, since it uses less digits than its factorization.

55260517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4250822.

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 55260517 is about 7433.7417899736. The cubic root of 55260517 is about 380.8947452331.

The spelling of 55260517 in words is "fifty-five million, two hundred sixty thousand, five hundred seventeen".