55438801 has 4 divisors (see below), whose sum is σ = 60478704. Its totient is φ = 50398900.

The previous prime is 55438777. The next prime is 55438811. The reversal of 55438801 is 10883455.

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 cyclic number.

It is not a de Polignac number, because 55438801 - 2⁵ = 55438769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55438811) 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, 2519935 + ... + 2519956.

It is an arithmetic number, because the mean of its divisors is an integer number (15119676).

Almost surely, 2^55438801 is an apocalyptic number.

It is an amenable number.

55438801 is a deficient number, since it is larger than the sum of its proper divisors (5039903).

55438801 is a wasteful number, since it uses less digits than its factorization.

55438801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5039902.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 55438801 is about 7445.7236720147. The cubic root of 55438801 is about 381.3039255085.

The spelling of 55438801 in words is "fifty-five million, four hundred thirty-eight thousand, eight hundred one".