55017401 has 4 divisors (see below), whose sum is σ = 56188032. Its totient is φ = 53846772.

The previous prime is 55017383. The next prime is 55017433. The reversal of 55017401 is 10471055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-55017401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55017481) 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, 585245 + ... + 585338.

It is an arithmetic number, because the mean of its divisors is an integer number (14047008).

Almost surely, 2^55017401 is an apocalyptic number.

It is an amenable number.

55017401 is a deficient number, since it is larger than the sum of its proper divisors (1170631).

55017401 is a wasteful number, since it uses less digits than its factorization.

55017401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170630.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 55017401 is about 7417.3715694982. The cubic root of 55017401 is about 380.3353480144.

Adding to 55017401 its reverse (10471055), we get a palindrome (65488456).

The spelling of 55017401 in words is "fifty-five million, seventeen thousand, four hundred one".