2325517821 has 48 divisors (see below), whose sum is σ = 3809332800. Its totient is φ = 1354613760.

The previous prime is 2325517819. The next prime is 2325517861. The reversal of 2325517821 is 1287155232.

2325517821 is a `hidden beast` number, since 2 + 32 + 551 + 78 + 2 + 1 = 666.

It is not a de Polignac number, because 2325517821 - 2¹ = 2325517819 is a prime.

It is a super-3 number, since 3×2325517821³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2325517861) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 300205 + ... + 307853.

It is an arithmetic number, because the mean of its divisors is an integer number (79361100).

Almost surely, 2^2325517821 is an apocalyptic number.

It is an amenable number.

2325517821 is a deficient number, since it is larger than the sum of its proper divisors (1483814979).

2325517821 is a wasteful number, since it uses less digits than its factorization.

2325517821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7786 (or 7783 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 2325517821 is about 48223.6230596582. The cubic root of 2325517821 is about 1324.8698713548.

The spelling of 2325517821 in words is "two billion, three hundred twenty-five million, five hundred seventeen thousand, eight hundred twenty-one".