245122505652 has 96 divisors (see below), whose sum is σ = 615982796800. Its totient is φ = 75633264000.

The previous prime is 245122505651. The next prime is 245122505653. The reversal of 245122505652 is 256505221542.

It is an interprime number because it is at equal distance from previous prime (245122505651) and next prime (245122505653).

It is a super-2 number, since 2×245122505652² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 245122505652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245122505651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2041749 + ... + 2158467.

Almost surely, 2^245122505652 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245122505652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307991398400).

245122505652 is an abundant number, since it is smaller than the sum of its proper divisors (370860291148).

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

245122505652 is a wasteful number, since it uses less digits than its factorization.

245122505652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116957 (or 116955 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 39.

The spelling of 245122505652 in words is "two hundred forty-five billion, one hundred twenty-two million, five hundred five thousand, six hundred fifty-two".