2651891225 has 24 divisors (see below), whose sum is σ = 3406091520. Its totient is φ = 2045736000.

The previous prime is 2651891153. The next prime is 2651891233. The reversal of 2651891225 is 5221981562.

It is not a de Polignac number, because 2651891225 - 2¹⁰ = 2651890201 is a prime.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 716630 + ... + 720320.

It is an arithmetic number, because the mean of its divisors is an integer number (141920480).

Almost surely, 2^2651891225 is an apocalyptic number.

2651891225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2651891225 is a deficient number, since it is larger than the sum of its proper divisors (754200295).

2651891225 is a wasteful number, since it uses less digits than its factorization.

2651891225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4721 (or 4716 counting only the distinct ones).

The product of its digits is 86400, while the sum is 41.

The square root of 2651891225 is about 51496.5166297683. The cubic root of 2651891225 is about 1384.1566240003.

The spelling of 2651891225 in words is "two billion, six hundred fifty-one million, eight hundred ninety-one thousand, two hundred twenty-five".