1206015550 has 48 divisors (see below), whose sum is σ = 2281416480. Its totient is φ = 474255360.

The previous prime is 1206015541. The next prime is 1206015563. The reversal of 1206015550 is 555106021.

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

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 809206 + ... + 810694.

It is an arithmetic number, because the mean of its divisors is an integer number (47529510).

Almost surely, 2^1206015550 is an apocalyptic number.

1206015550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1206015550 is a deficient number, since it is larger than the sum of its proper divisors (1075400930).

1206015550 is a wasteful number, since it uses less digits than its factorization.

1206015550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1765 (or 1760 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 1206015550 is about 34727.7345935493. The cubic root of 1206015550 is about 1064.4312979790.

The spelling of 1206015550 in words is "one billion, two hundred six million, fifteen thousand, five hundred fifty".