55142534 has 8 divisors (see below), whose sum is σ = 82896168. Its totient is φ = 27510480.

The previous prime is 55142519. The next prime is 55142537. The reversal of 55142534 is 43524155.

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

It is a junction number, because it is equal to n+sod(n) for n = 55142497 and 55142506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55142537) 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 3 ways as a sum of consecutive naturals, for example, 29252 + ... + 31079.

It is an arithmetic number, because the mean of its divisors is an integer number (10362021).

Almost surely, 2^55142534 is an apocalyptic number.

55142534 is a deficient number, since it is larger than the sum of its proper divisors (27753634).

55142534 is a wasteful number, since it uses less digits than its factorization.

55142534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60790.

The product of its digits is 12000, while the sum is 29.

The square root of 55142534 is about 7425.8019095583. The cubic root of 55142534 is about 380.6234778660.

Adding to 55142534 its reverse (43524155), we get a palindrome (98666689).

The spelling of 55142534 in words is "fifty-five million, one hundred forty-two thousand, five hundred thirty-four".