2529122261 has 8 divisors (see below), whose sum is σ = 2577744000. Its totient is φ = 2480692480.

The previous prime is 2529122237. The next prime is 2529122273. The reversal of 2529122261 is 1622219252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2529122261 - 2¹⁰ = 2529121237 is a prime.

It is a super-2 number, since 2×2529122261² = 12792918822171504242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2529152261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21245 + ... + 74226.

It is an arithmetic number, because the mean of its divisors is an integer number (322218000).

Almost surely, 2^2529122261 is an apocalyptic number.

It is an amenable number.

2529122261 is a deficient number, since it is larger than the sum of its proper divisors (48621739).

2529122261 is an equidigital number, since it uses as much as digits as its factorization.

2529122261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95979.

The product of its digits is 8640, while the sum is 32.

The square root of 2529122261 is about 50290.3794079941. The cubic root of 2529122261 is about 1362.4584750243.

The spelling of 2529122261 in words is "two billion, five hundred twenty-nine million, one hundred twenty-two thousand, two hundred sixty-one".