505515125 has 12 divisors (see below), whose sum is σ = 631196748. Its totient is φ = 404211000.

The previous prime is 505515107. The next prime is 505515133. The reversal of 505515125 is 521515505.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 16176484 + 489338641 = 4022^2 + 22121^2 .

It is not a de Polignac number, because 505515125 - 2¹⁰ = 505514101 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 11 ways as a sum of consecutive naturals, for example, 250370 + ... + 252380.

It is an arithmetic number, because the mean of its divisors is an integer number (52599729).

Almost surely, 2^505515125 is an apocalyptic number.

It is an amenable number.

505515125 is a deficient number, since it is larger than the sum of its proper divisors (125681623).

505515125 is an frugal number, since it uses more digits than its factorization.

505515125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4037 (or 2016 counting only the distinct ones).

The product of its (nonzero) digits is 6250, while the sum is 29.

The square root of 505515125 is about 22483.6635137604. The cubic root of 505515125 is about 796.6081000306.

The spelling of 505515125 in words is "five hundred five million, five hundred fifteen thousand, one hundred twenty-five".