55331401 has 8 divisors (see below), whose sum is σ = 58335680. Its totient is φ = 52336368.

The previous prime is 55331377. The next prime is 55331443. The reversal of 55331401 is 10413355.

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 not a de Polignac number, because 55331401 - 2¹³ = 55323209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55331461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12460 + ... + 16306.

It is an arithmetic number, because the mean of its divisors is an integer number (7291960).

Almost surely, 2^55331401 is an apocalyptic number.

It is an amenable number.

55331401 is a deficient number, since it is larger than the sum of its proper divisors (3004279).

55331401 is a wasteful number, since it uses less digits than its factorization.

55331401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4623.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 55331401 is about 7438.5079821158. The cubic root of 55331401 is about 381.0575366110.

Adding to 55331401 its reverse (10413355), we get a palindrome (65744756).

The spelling of 55331401 in words is "fifty-five million, three hundred thirty-one thousand, four hundred one".