509100055 has 8 divisors (see below), whose sum is σ = 637481952. Its totient is φ = 389572128.

The previous prime is 509100049. The next prime is 509100061. The reversal of 509100055 is 550001905.

It is an interprime number because it is at equal distance from previous prime (509100049) and next prime (509100061).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 509100055 - 2⁵ = 509100023 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 7 ways as a sum of consecutive naturals, for example, 2213364 + ... + 2213593.

It is an arithmetic number, because the mean of its divisors is an integer number (79685244).

Almost surely, 2^509100055 is an apocalyptic number.

509100055 is a deficient number, since it is larger than the sum of its proper divisors (128381897).

509100055 is a wasteful number, since it uses less digits than its factorization.

509100055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4426985.

The product of its (nonzero) digits is 1125, while the sum is 25.

The square root of 509100055 is about 22563.2456663486. The cubic root of 509100055 is about 798.4867513822.

The spelling of 509100055 in words is "five hundred nine million, one hundred thousand, fifty-five".