2521262061 has 24 divisors (see below), whose sum is σ = 3858079680. Its totient is φ = 1581134976.

The previous prime is 2521262021. The next prime is 2521262071. The reversal of 2521262061 is 1602621252.

2521262061 is a `hidden beast` number, since 25 + 2 + 12 + 620 + 6 + 1 = 666.

It is not a de Polignac number, because 2521262061 - 2¹⁸ = 2520999917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521262021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 425920 + ... + 431798.

It is an arithmetic number, because the mean of its divisors is an integer number (160753320).

Almost surely, 2^2521262061 is an apocalyptic number.

It is an amenable number.

2521262061 is a deficient number, since it is larger than the sum of its proper divisors (1336817619).

2521262061 is a wasteful number, since it uses less digits than its factorization.

2521262061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8705 (or 8702 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 2521262061 is about 50212.1704470141. The cubic root of 2521262061 is about 1361.0455593325.

The spelling of 2521262061 in words is "two billion, five hundred twenty-one million, two hundred sixty-two thousand, sixty-one".