555501155 has 16 divisors (see below), whose sum is σ = 735969024. Its totient is φ = 399130080.

The previous prime is 555501151. The next prime is 555501181. The reversal of 555501155 is 551105555.

It is not a de Polignac number, because 555501155 - 2² = 555501151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (555501151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56279 + ... + 65408.

It is an arithmetic number, because the mean of its divisors is an integer number (45998064).

Almost surely, 2^555501155 is an apocalyptic number.

555501155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

555501155 is a deficient number, since it is larger than the sum of its proper divisors (180467869).

555501155 is a wasteful number, since it uses less digits than its factorization.

555501155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121786.

The product of its (nonzero) digits is 15625, while the sum is 32.

The square root of 555501155 is about 23569.0720012477. The cubic root of 555501155 is about 822.0438579062.

The spelling of 555501155 in words is "five hundred fifty-five million, five hundred one thousand, one hundred fifty-five".