505253545 has 16 divisors (see below), whose sum is σ = 620085312. Its totient is φ = 395098560.

The previous prime is 505253543. The next prime is 505253579. The reversal of 505253545 is 545352505.

It is not a de Polignac number, because 505253545 - 2¹ = 505253543 is a prime.

It is a super-2 number, since 2×505253545² = 510562289470134050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 505253545.

It is not an unprimeable number, because it can be changed into a prime (505253543) 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, 44634 + ... + 54796.

It is an arithmetic number, because the mean of its divisors is an integer number (38755332).

Almost surely, 2^505253545 is an apocalyptic number.

It is an amenable number.

505253545 is a deficient number, since it is larger than the sum of its proper divisors (114831767).

505253545 is a wasteful number, since it uses less digits than its factorization.

505253545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10392.

The product of its (nonzero) digits is 75000, while the sum is 34.

The square root of 505253545 is about 22477.8456485492. The cubic root of 505253545 is about 796.4706740741.

The spelling of 505253545 in words is "five hundred five million, two hundred fifty-three thousand, five hundred forty-five".