1587173055 has 32 divisors (see below), whose sum is σ = 2738473920. Its totient is φ = 780334080.

The previous prime is 1587173039. The next prime is 1587173069. The reversal of 1587173055 is 5503717851.

It is not a de Polignac number, because 1587173055 - 2⁴ = 1587173039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1587172998 and 1587173016.

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, 152725 + ... + 162785.

It is an arithmetic number, because the mean of its divisors is an integer number (85577310).

Almost surely, 2^1587173055 is an apocalyptic number.

1587173055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1587173055 is a deficient number, since it is larger than the sum of its proper divisors (1151300865).

1587173055 is a wasteful number, since it uses less digits than its factorization.

1587173055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10891.

The product of its (nonzero) digits is 147000, while the sum is 42.

The square root of 1587173055 is about 39839.3405442409. The cubic root of 1587173055 is about 1166.4731877340.

The spelling of 1587173055 in words is "one billion, five hundred eighty-seven million, one hundred seventy-three thousand, fifty-five".