501225205 has 32 divisors (see below), whose sum is σ = 685052928. Its totient is φ = 349401600.

The previous prime is 501225203. The next prime is 501225209. The reversal of 501225205 is 502522105.

It is not a de Polignac number, because 501225205 - 2¹ = 501225203 is a prime.

It is a super-2 number, since 2×501225205² = 502453412254584050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501225203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79582 + ... + 85648.

It is an arithmetic number, because the mean of its divisors is an integer number (21407904).

Almost surely, 2^501225205 is an apocalyptic number.

It is an amenable number.

501225205 is a deficient number, since it is larger than the sum of its proper divisors (183827723).

501225205 is a wasteful number, since it uses less digits than its factorization.

501225205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6157.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 501225205 is about 22388.0594290796. The cubic root of 501225205 is about 794.3482944077.

The spelling of 501225205 in words is "five hundred one million, two hundred twenty-five thousand, two hundred five".