245325531311220 has 48 divisors (see below), whose sum is σ = 686917155516480. Its totient is φ = 65419601888256.

The previous prime is 245325531311219. The next prime is 245325531311251. The reversal of 245325531311220 is 22113135523542.

It is a super-2 number, since 2×245325531311220² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9509790 + ... + 24105749.

It is an arithmetic number, because the mean of its divisors is an integer number (14310774073260).

Almost surely, 2^{245325531311220} is an apocalyptic number.

245325531311220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245325531311220 is an abundant number, since it is smaller than the sum of its proper divisors (441591624205260).

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

245325531311220 is a wasteful number, since it uses less digits than its factorization.

245325531311220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33737184 (or 33737182 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 39.

Adding to 245325531311220 its reverse (22113135523542), we get a palindrome (267438666834762).

The spelling of 245325531311220 in words is "two hundred forty-five trillion, three hundred twenty-five billion, five hundred thirty-one million, three hundred eleven thousand, two hundred twenty".