2521225761 has 8 divisors (see below), whose sum is σ = 3362810304. Its totient is φ = 1680229200.

The previous prime is 2521225757. The next prime is 2521225771. The reversal of 2521225761 is 1675221252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2521225761 - 2² = 2521225757 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2521225771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136890 + ... + 154211.

It is an arithmetic number, because the mean of its divisors is an integer number (420351288).

Almost surely, 2^2521225761 is an apocalyptic number.

It is an amenable number.

2521225761 is a deficient number, since it is larger than the sum of its proper divisors (841584543).

2521225761 is a wasteful number, since it uses less digits than its factorization.

2521225761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293991.

The product of its digits is 16800, while the sum is 33.

The square root of 2521225761 is about 50211.8089795618. The cubic root of 2521225761 is about 1361.0390273934.

The spelling of 2521225761 in words is "two billion, five hundred twenty-one million, two hundred twenty-five thousand, seven hundred sixty-one".