2505161061 has 32 divisors (see below), whose sum is σ = 4033568000. Its totient is φ = 1527470784.

The previous prime is 2505161059. The next prime is 2505161093. The reversal of 2505161061 is 1601615052.

It is a happy number.

2505161061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2505161061 - 2¹ = 2505161059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505111061) 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, 5520 + ... + 70998.

It is an arithmetic number, because the mean of its divisors is an integer number (126049000).

Almost surely, 2^2505161061 is an apocalyptic number.

It is an amenable number.

2505161061 is a deficient number, since it is larger than the sum of its proper divisors (1528406939).

2505161061 is a wasteful number, since it uses less digits than its factorization.

2505161061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65610 (or 65604 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 2505161061 is about 50051.5840009085. The cubic root of 2505161061 is about 1358.1421180026.

The spelling of 2505161061 in words is "two billion, five hundred five million, one hundred sixty-one thousand, sixty-one".