120688550 has 12 divisors (see below), whose sum is σ = 224480796. Its totient is φ = 48275400.

The previous prime is 120688541. The next prime is 120688553. The reversal of 120688550 is 55886021.

It is a happy number.

It is a super-2 number, since 2×120688550² = 29131452202205000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 120688550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120688553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1206836 + ... + 1206935.

It is an arithmetic number, because the mean of its divisors is an integer number (18706733).

Almost surely, 2^120688550 is an apocalyptic number.

120688550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120688550 is a deficient number, since it is larger than the sum of its proper divisors (103792246).

120688550 is a wasteful number, since it uses less digits than its factorization.

120688550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2413783 (or 2413778 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 120688550 is about 10985.8340602796. The cubic root of 120688550 is about 494.1840108471.

The spelling of 120688550 in words is "one hundred twenty million, six hundred eighty-eight thousand, five hundred fifty".