1051055550 has 36 divisors (see below), whose sum is σ = 2823837120. Its totient is φ = 280281360.

The previous prime is 1051055539. The next prime is 1051055563. The reversal of 1051055550 is 555501501.

1051055550 is a `hidden beast` number, since 1 + 0 + 5 + 105 + 5 + 550 = 666.

It is a super-2 number, since 2×1051055550² = 2209435538371605000, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1167390 + ... + 1168289.

It is an arithmetic number, because the mean of its divisors is an integer number (78439920).

Almost surely, 2^1051055550 is an apocalyptic number.

1051055550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1051055550 is an abundant number, since it is smaller than the sum of its proper divisors (1772781570).

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

1051055550 is a wasteful number, since it uses less digits than its factorization.

1051055550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2335697 (or 2335689 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 27.

The square root of 1051055550 is about 32419.9868908055. The cubic root of 1051055550 is about 1016.7368323278.

The spelling of 1051055550 in words is "one billion, fifty-one million, fifty-five thousand, five hundred fifty".