505155201 has 8 divisors (see below), whose sum is σ = 687871104. Its totient is φ = 329604720.

The previous prime is 505155179. The next prime is 505155229. The reversal of 505155201 is 102551505.

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

It is not a de Polignac number, because 505155201 - 2¹⁵ = 505122433 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (505155241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1791190 + ... + 1791471.

It is an arithmetic number, because the mean of its divisors is an integer number (85983888).

Almost surely, 2^505155201 is an apocalyptic number.

It is an amenable number.

505155201 is a deficient number, since it is larger than the sum of its proper divisors (182715903).

505155201 is a wasteful number, since it uses less digits than its factorization.

505155201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3582711.

The product of its (nonzero) digits is 1250, while the sum is 24.

The square root of 505155201 is about 22475.6579658972. The cubic root of 505155201 is about 796.4189949417.

The spelling of 505155201 in words is "five hundred five million, one hundred fifty-five thousand, two hundred one".