55542001 has 4 divisors (see below), whose sum is σ = 55565632. Its totient is φ = 55518372.

The previous prime is 55541999. The next prime is 55542013. The reversal of 55542001 is 10024555.

55542001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10024555 = 5 ⋅2004911.

It is a cyclic number.

It is not a de Polignac number, because 55542001 - 2¹ = 55541999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55542041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7845 + ... + 13138.

It is an arithmetic number, because the mean of its divisors is an integer number (13891408).

Almost surely, 2^55542001 is an apocalyptic number.

It is an amenable number.

55542001 is a deficient number, since it is larger than the sum of its proper divisors (23631).

55542001 is a wasteful number, since it uses less digits than its factorization.

55542001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23630.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 55542001 is about 7452.6506023025. The cubic root of 55542001 is about 381.5403794747.

Adding to 55542001 its reverse (10024555), we get a palindrome (65566556).

The spelling of 55542001 in words is "fifty-five million, five hundred forty-two thousand, one".