102288550 has 48 divisors (see below), whose sum is σ = 234172512. Its totient is φ = 32371200.

The previous prime is 102288547. The next prime is 102288581. The reversal of 102288550 is 55882201.

It is a super-2 number, since 2×102288550² = 20925894922205000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6691 + ... + 15790.

It is an arithmetic number, because the mean of its divisors is an integer number (4878594).

Almost surely, 2^102288550 is an apocalyptic number.

102288550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102288550 is an abundant number, since it is smaller than the sum of its proper divisors (131883962).

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

102288550 is a wasteful number, since it uses less digits than its factorization.

102288550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22513 (or 22508 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 102288550 is about 10113.7802032672. The cubic root of 102288550 is about 467.6730464078.

The spelling of 102288550 in words is "one hundred two million, two hundred eighty-eight thousand, five hundred fifty".