1055987895 has 32 divisors (see below), whose sum is σ = 1792317888. Its totient is φ = 529072128.

The previous prime is 1055987831. The next prime is 1055987903. The reversal of 1055987895 is 5987895501.

It is not a de Polignac number, because 1055987895 - 2⁶ = 1055987831 is a prime.

It is a super-2 number, since 2×1055987895² = 2230220868773062050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 143547 + ... + 150723.

It is an arithmetic number, because the mean of its divisors is an integer number (56009934).

Almost surely, 2^1055987895 is an apocalyptic number.

1055987895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1055987895 is a deficient number, since it is larger than the sum of its proper divisors (736329993).

1055987895 is a wasteful number, since it uses less digits than its factorization.

1055987895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7779.

The product of its (nonzero) digits is 4536000, while the sum is 57.

The square root of 1055987895 is about 32495.9673651978. The cubic root of 1055987895 is about 1018.3247828600.

The spelling of 1055987895 in words is "one billion, fifty-five million, nine hundred eighty-seven thousand, eight hundred ninety-five".