551045913650 has 24 divisors (see below), whose sum is σ = 1024978496880. Its totient is φ = 220411247760.

The previous prime is 551045913643. The next prime is 551045913673. The reversal of 551045913650 is 56319540155.

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, 1552541 + ... + 1874159.

It is an arithmetic number, because the mean of its divisors is an integer number (42707437370).

Almost surely, 2^551045913650 is an apocalyptic number.

551045913650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

551045913650 is a deficient number, since it is larger than the sum of its proper divisors (473932583230).

551045913650 is a wasteful number, since it uses less digits than its factorization.

551045913650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355898 (or 355893 counting only the distinct ones).

The product of its (nonzero) digits is 405000, while the sum is 44.

The spelling of 551045913650 in words is "five hundred fifty-one billion, forty-five million, nine hundred thirteen thousand, six hundred fifty".