55001361 has 8 divisors (see below), whose sum is σ = 74219040. Its totient is φ = 36225632.

The previous prime is 55001311. The next prime is 55001363. The reversal of 55001361 is 16310055.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55001361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55001363) 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, 110196 + ... + 110693.

It is an arithmetic number, because the mean of its divisors is an integer number (9277380).

Almost surely, 2^55001361 is an apocalyptic number.

It is an amenable number.

55001361 is a deficient number, since it is larger than the sum of its proper divisors (19217679).

55001361 is a wasteful number, since it uses less digits than its factorization.

55001361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220975.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 55001361 is about 7416.2902451293. The cubic root of 55001361 is about 380.2983829098.

The spelling of 55001361 in words is "fifty-five million, one thousand, three hundred sixty-one".