102628055 has 4 divisors (see below), whose sum is σ = 123153672. Its totient is φ = 82102440.

The previous prime is 102628027. The next prime is 102628091. The reversal of 102628055 is 550826201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 550826201 = 4663 ⋅118127.

It is not a de Polignac number, because 102628055 - 2⁶ = 102627991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10262801 + ... + 10262810.

It is an arithmetic number, because the mean of its divisors is an integer number (30788418).

Almost surely, 2^102628055 is an apocalyptic number.

102628055 is a deficient number, since it is larger than the sum of its proper divisors (20525617).

102628055 is an equidigital number, since it uses as much as digits as its factorization.

102628055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20525616.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 102628055 is about 10130.5505773378. The cubic root of 102628055 is about 468.1898914680.

The spelling of 102628055 in words is "one hundred two million, six hundred twenty-eight thousand, fifty-five".