2530011661 has 16 divisors (see below), whose sum is σ = 2691756288. Its totient is φ = 2372832000.

The previous prime is 2530011637. The next prime is 2530011667. The reversal of 2530011661 is 1661100352.

2530011661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2530011661 - 2¹⁷ = 2529880589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2530011667) 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, 470136 + ... + 475486.

It is an arithmetic number, because the mean of its divisors is an integer number (168234768).

Almost surely, 2^2530011661 is an apocalyptic number.

It is an amenable number.

2530011661 is a deficient number, since it is larger than the sum of its proper divisors (161744627).

2530011661 is a wasteful number, since it uses less digits than its factorization.

2530011661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5772.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 2530011661 is about 50299.2212762782. The cubic root of 2530011661 is about 1362.6181652812.

The spelling of 2530011661 in words is "two billion, five hundred thirty million, eleven thousand, six hundred sixty-one".