55129102 has 16 divisors (see below), whose sum is σ = 95427072. Its totient is φ = 23396760.

The previous prime is 55129093. The next prime is 55129103. The reversal of 55129102 is 20192155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55129103) 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, 17674 + ... + 20557.

It is an arithmetic number, because the mean of its divisors is an integer number (5964192).

Almost surely, 2^55129102 is an apocalyptic number.

55129102 is a deficient number, since it is larger than the sum of its proper divisors (40297970).

55129102 is a wasteful number, since it uses less digits than its factorization.

55129102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38343.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 55129102 is about 7424.8974403691. The cubic root of 55129102 is about 380.5925703894.

The spelling of 55129102 in words is "fifty-five million, one hundred twenty-nine thousand, one hundred two".