245231225240 has 32 divisors (see below), whose sum is σ = 553544465760. Its totient is φ = 97777075200.

The previous prime is 245231225237. The next prime is 245231225243. The reversal of 245231225240 is 42522132542.

It is an interprime number because it is at equal distance from previous prime (245231225237) and next prime (245231225243).

It is a super-2 number, since 2×245231225240² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 245231225197 and 245231225206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245231225243) 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, 9844121 + ... + 9869000.

It is an arithmetic number, because the mean of its divisors is an integer number (17298264555).

Almost surely, 2^245231225240 is an apocalyptic number.

245231225240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245231225240 is an abundant number, since it is smaller than the sum of its proper divisors (308313240520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245231225240 is a wasteful number, since it uses less digits than its factorization.

245231225240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19713443 (or 19713439 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 245231225240 its reverse (42522132542), we get a palindrome (287753357782).

The spelling of 245231225240 in words is "two hundred forty-five billion, two hundred thirty-one million, two hundred twenty-five thousand, two hundred forty".