55864401 has 8 divisors (see below), whose sum is σ = 77724480. Its totient is φ = 35623632.

The previous prime is 55864357. The next prime is 55864423. The reversal of 55864401 is 10446855.

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

It is not a de Polignac number, because 55864401 - 2⁷ = 55864273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55864451) 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, 404746 + ... + 404883.

It is an arithmetic number, because the mean of its divisors is an integer number (9715560).

Almost surely, 2^55864401 is an apocalyptic number.

It is an amenable number.

55864401 is a deficient number, since it is larger than the sum of its proper divisors (21860079).

55864401 is a wasteful number, since it uses less digits than its factorization.

55864401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809655.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 55864401 is about 7474.2491930628. The cubic root of 55864401 is about 382.2771875044.

It can be divided in two parts, 55864 and 401, that added together give a palindrome (56265).

The spelling of 55864401 in words is "fifty-five million, eight hundred sixty-four thousand, four hundred one".