1052855987 has 4 divisors (see below), whose sum is σ = 1108269480. Its totient is φ = 997442496.

The previous prime is 1052855929. The next prime is 1052856031. The reversal of 1052855987 is 7895582501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7895582501 = 557 ⋅14175193.

It is a cyclic number.

It is not a de Polignac number, because 1052855987 - 2¹⁴ = 1052839603 is a prime.

It is a super-2 number, since 2×1052855987² = 2217011458723488338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1052855927) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 27706718 + ... + 27706755.

It is an arithmetic number, because the mean of its divisors is an integer number (277067370).

Almost surely, 2^1052855987 is an apocalyptic number.

1052855987 is a deficient number, since it is larger than the sum of its proper divisors (55413493).

1052855987 is an equidigital number, since it uses as much as digits as its factorization.

1052855987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55413492.

The product of its (nonzero) digits is 1008000, while the sum is 50.

The square root of 1052855987 is about 32447.7424022073. The cubic root of 1052855987 is about 1017.3170510619.

The spelling of 1052855987 in words is "one billion, fifty-two million, eight hundred fifty-five thousand, nine hundred eighty-seven".