245123040252 has 12 divisors (see below), whose sum is σ = 571953760616. Its totient is φ = 81707680080.

The previous prime is 245123040223. The next prime is 245123040269. The reversal of 245123040252 is 252040321542.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×245123040252² (a number of 24 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 3 ways as a sum of consecutive naturals, for example, 10213459999 + ... + 10213460022.

Almost surely, 2^245123040252 is an apocalyptic number.

It is an amenable number.

245123040252 is an abundant number, since it is smaller than the sum of its proper divisors (326830720364).

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

245123040252 is a wasteful number, since it uses less digits than its factorization.

245123040252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20426920028 (or 20426920026 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 245123040252 its reverse (252040321542), we get a palindrome (497163361794).

The spelling of 245123040252 in words is "two hundred forty-five billion, one hundred twenty-three million, forty thousand, two hundred fifty-two".