2651529121 has 2 divisors, whose sum is σ = 2651529122. Its totient is φ = 2651529120.

The previous prime is 2651529091. The next prime is 2651529161. The reversal of 2651529121 is 1219251562.

2651529121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2571605521 + 79923600 = 50711^2 + 8940^2 .

It is a cyclic number.

It is not a de Polignac number, because 2651529121 - 2¹⁷ = 2651398049 is a prime.

It is a super-2 number, since 2×2651529121² = 14061213359022065282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2651529161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1325764560 + 1325764561.

It is an arithmetic number, because the mean of its divisors is an integer number (1325764561).

Almost surely, 2^2651529121 is an apocalyptic number.

It is an amenable number.

2651529121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2651529121 is an equidigital number, since it uses as much as digits as its factorization.

2651529121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 34.

The square root of 2651529121 is about 51493.0006991241. Note that the first 3 decimals coincide. The cubic root of 2651529121 is about 1384.0936209807.

The spelling of 2651529121 in words is "two billion, six hundred fifty-one million, five hundred twenty-nine thousand, one hundred twenty-one".