1051305550 has 24 divisors (see below), whose sum is σ = 1974422736. Its totient is φ = 416437440.

The previous prime is 1051305539. The next prime is 1051305569. The reversal of 1051305550 is 555031501.

It is a super-2 number, since 2×1051305550² = 2210486718921605000, which contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 96919 + ... + 107218.

It is an arithmetic number, because the mean of its divisors is an integer number (82267614).

Almost surely, 2^1051305550 is an apocalyptic number.

1051305550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1051305550 is a deficient number, since it is larger than the sum of its proper divisors (923117186).

1051305550 is a wasteful number, since it uses less digits than its factorization.

1051305550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204252 (or 204247 counting only the distinct ones).

The product of its (nonzero) digits is 1875, while the sum is 25.

The square root of 1051305550 is about 32423.8423077833. The cubic root of 1051305550 is about 1016.8174382982.

The spelling of 1051305550 in words is "one billion, fifty-one million, three hundred five thousand, five hundred fifty".