55516542 has 32 divisors (see below), whose sum is σ = 115153920. Its totient is φ = 17830080.

The previous prime is 55516529. The next prime is 55516547. The reversal of 55516542 is 24561555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55516547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19059 + ... + 21777.

It is an arithmetic number, because the mean of its divisors is an integer number (3598560).

Almost surely, 2^55516542 is an apocalyptic number.

55516542 is an abundant number, since it is smaller than the sum of its proper divisors (59637378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55516542 is a wasteful number, since it uses less digits than its factorization.

55516542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2848.

The product of its digits is 30000, while the sum is 33.

The square root of 55516542 is about 7450.9423565077. The cubic root of 55516542 is about 381.4820745230.

The spelling of 55516542 in words is "fifty-five million, five hundred sixteen thousand, five hundred forty-two".