2601945522 has 54 divisors (see below), whose sum is σ = 6202318941. Its totient is φ = 787746960.

The previous prime is 2601945517. The next prime is 2601945529. The reversal of 2601945522 is 2255491062.

2601945522 is a `hidden beast` number, since 2 + 601 + 9 + 45 + 5 + 2 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1612905921 + 989039601 = 40161^2 + 31449^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=36069.

It is not an unprimeable number, because it can be changed into a prime (2601945529) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2380008 + ... + 2381100.

Almost surely, 2^2601945522 is an apocalyptic number.

2601945522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2601945522

2601945522 is an abundant number, since it is smaller than the sum of its proper divisors (3600373419).

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

2601945522 is a wasteful number, since it uses less digits than its factorization.

2601945522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216 (or 1109 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 2601945522 is about 51009.2689812352. The cubic root of 2601945522 is about 1375.4117593484.

The spelling of 2601945522 in words is "two billion, six hundred one million, nine hundred forty-five thousand, five hundred twenty-two".