2525276621 has 16 divisors (see below), whose sum is σ = 2900451840. Its totient is φ = 2153738160.

The previous prime is 2525276599. The next prime is 2525276657. The reversal of 2525276621 is 1266725252.

It is a happy number.

It is not a de Polignac number, because 2525276621 - 2⁶ = 2525276557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2525276671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1514030 + ... + 1515696.

It is an arithmetic number, because the mean of its divisors is an integer number (181278240).

Almost surely, 2^2525276621 is an apocalyptic number.

It is an amenable number.

2525276621 is a deficient number, since it is larger than the sum of its proper divisors (375175219).

2525276621 is a wasteful number, since it uses less digits than its factorization.

2525276621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2624.

The product of its digits is 100800, while the sum is 38.

The square root of 2525276621 is about 50252.1305120489. The cubic root of 2525276621 is about 1361.7675656684.

The spelling of 2525276621 in words is "two billion, five hundred twenty-five million, two hundred seventy-six thousand, six hundred twenty-one".