155875565 has 16 divisors (see below), whose sum is σ = 189666048. Its totient is φ = 122967936.

The previous prime is 155875541. The next prime is 155875583. The reversal of 155875565 is 565578551.

It is a cyclic number.

It is not a de Polignac number, because 155875565 - 2⁶ = 155875501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160712 + ... + 161678.

It is an arithmetic number, because the mean of its divisors is an integer number (11854128).

Almost surely, 2^155875565 is an apocalyptic number.

It is an amenable number.

155875565 is a deficient number, since it is larger than the sum of its proper divisors (33790483).

155875565 is a wasteful number, since it uses less digits than its factorization.

155875565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388.

The product of its digits is 1050000, while the sum is 47.

The square root of 155875565 is about 12485.0136163322. The cubic root of 155875565 is about 538.1780906431.

The spelling of 155875565 in words is "one hundred fifty-five million, eight hundred seventy-five thousand, five hundred sixty-five".