2561125332 has 48 divisors (see below), whose sum is σ = 6069728000. Its totient is φ = 840378240.

The previous prime is 2561125313. The next prime is 2561125339. The reversal of 2561125332 is 2335211652.

It is a super-2 number, since 2×2561125332² = 13118725932424220448, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2561125332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2561125339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326982 + ... + 334722.

Almost surely, 2^2561125332 is an apocalyptic number.

It is an amenable number.

2561125332 is an abundant number, since it is smaller than the sum of its proper divisors (3508602668).

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

2561125332 is a wasteful number, since it uses less digits than its factorization.

2561125332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8176 (or 8174 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

The square root of 2561125332 is about 50607.5620041116. The cubic root of 2561125332 is about 1368.1811749204.

Adding to 2561125332 its reverse (2335211652), we get a palindrome (4896336984).

The spelling of 2561125332 in words is "two billion, five hundred sixty-one million, one hundred twenty-five thousand, three hundred thirty-two".