2231540425 has 24 divisors (see below), whose sum is σ = 2866816512. Its totient is φ = 1721328000.

The previous prime is 2231540417. The next prime is 2231540449. The reversal of 2231540425 is 5240451322.

It is not a de Polignac number, because 2231540425 - 2³ = 2231540417 is a prime.

It is a super-3 number, since 3×2231540425³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2231540393 and 2231540402.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 212652 + ... + 222898.

It is an arithmetic number, because the mean of its divisors is an integer number (119450688).

Almost surely, 2^2231540425 is an apocalyptic number.

2231540425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2231540425 is a deficient number, since it is larger than the sum of its proper divisors (635276087).

2231540425 is a wasteful number, since it uses less digits than its factorization.

2231540425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10569 (or 10564 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 2231540425 is about 47239.1831533950. The cubic root of 2231540425 is about 1306.7773134110. Note that the first 3 decimals are identical.

Adding to 2231540425 its reverse (5240451322), we get a palindrome (7471991747).

The spelling of 2231540425 in words is "two billion, two hundred thirty-one million, five hundred forty thousand, four hundred twenty-five".