2505215245 has 32 divisors (see below), whose sum is σ = 3363655680. Its totient is φ = 1778699520.

The previous prime is 2505215243. The next prime is 2505215261. The reversal of 2505215245 is 5425125052.

It is a happy number.

It is not a de Polignac number, because 2505215245 - 2¹ = 2505215243 is a prime.

It is a super-2 number, since 2×2505215245² = 12552206847560820050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505215243) 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, 312396 + ... + 320314.

It is an arithmetic number, because the mean of its divisors is an integer number (105114240).

Almost surely, 2^2505215245 is an apocalyptic number.

It is an amenable number.

2505215245 is a deficient number, since it is larger than the sum of its proper divisors (858440435).

2505215245 is a wasteful number, since it uses less digits than its factorization.

2505215245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8125.

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 2505215245 is about 50052.1252795523. The cubic root of 2505215245 is about 1358.1519096607.

The spelling of 2505215245 in words is "two billion, five hundred five million, two hundred fifteen thousand, two hundred forty-five".