1050555645 has 24 divisors (see below), whose sum is σ = 1848146976. Its totient is φ = 551932128.

The previous prime is 1050555643. The next prime is 1050555673. The reversal of 1050555645 is 5465550501.

1050555645 is a `hidden beast` number, since 1 + 0 + 5 + 0 + 5 + 5 + 5 + 645 = 666.

It is not a de Polignac number, because 1050555645 - 2¹ = 1050555643 is a prime.

It is a super-2 number, since 2×1050555645² = 2207334326482732050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1050555643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 171207 + ... + 177236.

It is an arithmetic number, because the mean of its divisors is an integer number (77006124).

Almost surely, 2^1050555645 is an apocalyptic number.

1050555645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1050555645 is a deficient number, since it is larger than the sum of its proper divisors (797591331).

1050555645 is a wasteful number, since it uses less digits than its factorization.

1050555645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348521 (or 348518 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

The square root of 1050555645 is about 32412.2761465467. The cubic root of 1050555645 is about 1016.5756126761.

The spelling of 1050555645 in words is "one billion, fifty million, five hundred fifty-five thousand, six hundred forty-five".