1260667550 has 48 divisors (see below), whose sum is σ = 2421072720. Its totient is φ = 488087040.

The previous prime is 1260667547. The next prime is 1260667579. The reversal of 1260667550 is 557660621.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 240356 + ... + 245544.

It is an arithmetic number, because the mean of its divisors is an integer number (50439015).

Almost surely, 2^1260667550 is an apocalyptic number.

1260667550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1260667550 is a deficient number, since it is larger than the sum of its proper divisors (1160405170).

1260667550 is a wasteful number, since it uses less digits than its factorization.

1260667550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5357 (or 5352 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 1260667550 is about 35505.8804988695. The cubic root of 1260667550 is about 1080.2730076852.

The spelling of 1260667550 in words is "one billion, two hundred sixty million, six hundred sixty-seven thousand, five hundred fifty".