2529952921 has 2 divisors, whose sum is σ = 2529952922. Its totient is φ = 2529952920.

The previous prime is 2529952913. The next prime is 2529952969. The reversal of 2529952921 is 1292599252.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2446687296 + 83265625 = 49464^2 + 9125^2 .

It is a cyclic number.

It is not a de Polignac number, because 2529952921 - 2³ = 2529952913 is a prime.

It is not a weakly prime, because it can be changed into another prime (2529952991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1264976460 + 1264976461.

It is an arithmetic number, because the mean of its divisors is an integer number (1264976461).

Almost surely, 2^2529952921 is an apocalyptic number.

It is an amenable number.

2529952921 is a deficient number, since it is larger than the sum of its proper divisors (1).

2529952921 is an equidigital number, since it uses as much as digits as its factorization.

2529952921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 291600, while the sum is 46.

The square root of 2529952921 is about 50298.6373672289. The cubic root of 2529952921 is about 1362.6076197684.

The spelling of 2529952921 in words is "two billion, five hundred twenty-nine million, nine hundred fifty-two thousand, nine hundred twenty-one".