2512021329 has 20 divisors (see below), whose sum is σ = 3764629440. Its totient is φ = 1669279320.

The previous prime is 2512021327. The next prime is 2512021339. The reversal of 2512021329 is 9231202152.

It is a happy number.

It is not a de Polignac number, because 2512021329 - 2¹ = 2512021327 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2512021327) 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 19 ways as a sum of consecutive naturals, for example, 24669 + ... + 75050.

It is an arithmetic number, because the mean of its divisors is an integer number (188231472).

Almost surely, 2^2512021329 is an apocalyptic number.

It is an amenable number.

2512021329 is a deficient number, since it is larger than the sum of its proper divisors (1252608111).

2512021329 is an equidigital number, since it uses as much as digits as its factorization.

2512021329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100042 (or 100033 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2512021329 is about 50120.0691240545. The cubic root of 2512021329 is about 1359.3807245799.

The spelling of 2512021329 in words is "two billion, five hundred twelve million, twenty-one thousand, three hundred twenty-nine".