102555555 has 32 divisors (see below), whose sum is σ = 169827840. Its totient is φ = 52811520.

The previous prime is 102555463. The next prime is 102555619. The reversal of 102555555 is 555555201.

It is not a de Polignac number, because 102555555 - 2¹⁰ = 102554531 is a prime.

It is a super-2 number, since 2×102555555² = 21035283722716050, which contains 22 as substring.

102555555 is a modest number, since divided by 55555 gives 1025 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62536 + ... + 64154.

It is an arithmetic number, because the mean of its divisors is an integer number (5307120).

Almost surely, 2^102555555 is an apocalyptic number.

102555555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102555555 is a deficient number, since it is larger than the sum of its proper divisors (67272285).

102555555 is a wasteful number, since it uses less digits than its factorization.

102555555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771.

The product of its (nonzero) digits is 31250, while the sum is 33.

The square root of 102555555 is about 10126.9716598794. The cubic root of 102555555 is about 468.0796169974.

The spelling of 102555555 in words is "one hundred two million, five hundred fifty-five thousand, five hundred fifty-five".