120543550 has 24 divisors (see below), whose sum is σ = 224969976. Its totient is φ = 48054240.

The previous prime is 120543547. The next prime is 120543551. The reversal of 120543550 is 55345021.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120543551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11424 + ... + 19276.

It is an arithmetic number, because the mean of its divisors is an integer number (9373749).

Almost surely, 2^120543550 is an apocalyptic number.

120543550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120543550 is a deficient number, since it is larger than the sum of its proper divisors (104426426).

120543550 is a wasteful number, since it uses less digits than its factorization.

120543550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8172 (or 8167 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 120543550 is about 10979.2326689983. The cubic root of 120543550 is about 493.9860207926.

Adding to 120543550 its reverse (55345021), we get a palindrome (175888571).

The spelling of 120543550 in words is "one hundred twenty million, five hundred forty-three thousand, five hundred fifty".