2561415332 has 24 divisors (see below), whose sum is σ = 5345563776. Its totient is φ = 1050020928.

The previous prime is 2561415319. The next prime is 2561415371. The reversal of 2561415332 is 2335141652.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1988033 + ... + 1989320.

It is an arithmetic number, because the mean of its divisors is an integer number (222731824).

Almost surely, 2^2561415332 is an apocalyptic number.

It is an amenable number.

2561415332 is an abundant number, since it is smaller than the sum of its proper divisors (2784148444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2561415332 is a wasteful number, since it uses less digits than its factorization.

2561415332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3977387 (or 3977385 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 2561415332 is about 50610.4271074647. The cubic root of 2561415332 is about 1368.2328133625.

Adding to 2561415332 its reverse (2335141652), we get a palindrome (4896556984).

The spelling of 2561415332 in words is "two billion, five hundred sixty-one million, four hundred fifteen thousand, three hundred thirty-two".