102055555 has 48 divisors (see below), whose sum is σ = 152651520. Its totient is φ = 63975744.

The previous prime is 102055529. The next prime is 102055561. The reversal of 102055555 is 555550201.

It is a happy number.

It is not a de Polignac number, because 102055555 - 2⁵ = 102055523 is a prime.

102055555 is a modest number, since divided by 55555 gives 1020 as remainder.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1229544 + ... + 1229626.

It is an arithmetic number, because the mean of its divisors is an integer number (3180240).

Almost surely, 2^102055555 is an apocalyptic number.

102055555 is a deficient number, since it is larger than the sum of its proper divisors (50595965).

102055555 is an equidigital number, since it uses as much as digits as its factorization.

102055555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 6250, while the sum is 28.

The square root of 102055555 is about 10102.2549462979. The cubic root of 102055555 is about 467.3176846365.

The spelling of 102055555 in words is "one hundred two million, fifty-five thousand, five hundred fifty-five".