2601222536 has 64 divisors (see below), whose sum is σ = 5568307200. Its totient is φ = 1127649600.

The previous prime is 2601222529. The next prime is 2601222553. The reversal of 2601222536 is 6352221062.

It is a junction number, because it is equal to n+sod(n) for n = 2601222499 and 2601222508.

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, 765401 + ... + 768791.

It is an arithmetic number, because the mean of its divisors is an integer number (87004800).

Almost surely, 2^2601222536 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 2601222536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2784153600).

2601222536 is an abundant number, since it is smaller than the sum of its proper divisors (2967084664).

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

2601222536 is a wasteful number, since it uses less digits than its factorization.

2601222536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3810 (or 3806 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 2601222536 is about 51002.1816788262. The cubic root of 2601222536 is about 1375.2843552508.

Adding to 2601222536 its reverse (6352221062), we get a palindrome (8953443598).

The spelling of 2601222536 in words is "two billion, six hundred one million, two hundred twenty-two thousand, five hundred thirty-six".