1951044550 has 48 divisors (see below), whose sum is σ = 4466401632. Its totient is φ = 617472000.

The previous prime is 1951044493. The next prime is 1951044569. The reversal of 1951044550 is 554401591.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 209851 + ... + 218950.

It is an arithmetic number, because the mean of its divisors is an integer number (93050034).

Almost surely, 2^1951044550 is an apocalyptic number.

1951044550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1951044550 is an abundant number, since it is smaller than the sum of its proper divisors (2515357082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1951044550 is a wasteful number, since it uses less digits than its factorization.

1951044550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428833 (or 428828 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 34.

The square root of 1951044550 is about 44170.6299479643. The cubic root of 1951044550 is about 1249.5560129858.

The spelling of 1951044550 in words is "one billion, nine hundred fifty-one million, forty-four thousand, five hundred fifty".