102100550 has 24 divisors (see below), whose sum is σ = 190779456. Its totient is φ = 40652640.

The previous prime is 102100529. The next prime is 102100567. The reversal of 102100550 is 55001201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6572 + ... + 15728.

It is an arithmetic number, because the mean of its divisors is an integer number (7949144).

Almost surely, 2^102100550 is an apocalyptic number.

102100550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102100550 is a deficient number, since it is larger than the sum of its proper divisors (88678906).

102100550 is a wasteful number, since it uses less digits than its factorization.

102100550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9392 (or 9387 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 102100550 is about 10104.4816789383. The cubic root of 102100550 is about 467.3863526929.

Adding to 102100550 its reverse (55001201), we get a palindrome (157101751).

The spelling of 102100550 in words is "one hundred two million, one hundred thousand, five hundred fifty".