55542123 has 48 divisors (see below), whose sum is σ = 100201920. Its totient is φ = 28864512.

The previous prime is 55542121. The next prime is 55542127. The reversal of 55542123 is 32124555.

It is a happy number.

It is not a de Polignac number, because 55542123 - 2¹ = 55542121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55542121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 59323 + ... + 60251.

It is an arithmetic number, because the mean of its divisors is an integer number (2087540).

Almost surely, 2^55542123 is an apocalyptic number.

55542123 is a deficient number, since it is larger than the sum of its proper divisors (44659797).

55542123 is a wasteful number, since it uses less digits than its factorization.

55542123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028 (or 1025 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 55542123 is about 7452.6587873054. The cubic root of 55542123 is about 381.5406588303.

Adding to 55542123 its reverse (32124555), we get a palindrome (87666678).

The spelling of 55542123 in words is "fifty-five million, five hundred forty-two thousand, one hundred twenty-three".