10105510550 has 24 divisors (see below), whose sum is σ = 18900113232. Its totient is φ = 4019868000.

The previous prime is 10105510531. The next prime is 10105510627. The reversal of 10105510550 is 5501550101.

It is a happy number.

It is a super-2 number, since 2×10105510550² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

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, 549266 + ... + 567365.

It is an arithmetic number, because the mean of its divisors is an integer number (787504718).

Almost surely, 2^10105510550 is an apocalyptic number.

10105510550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10105510550 is a deficient number, since it is larger than the sum of its proper divisors (8794602682).

10105510550 is a wasteful number, since it uses less digits than its factorization.

10105510550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116824 (or 1116819 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 23.

The spelling of 10105510550 in words is "ten billion, one hundred five million, five hundred ten thousand, five hundred fifty".