2601322551 has 12 divisors (see below), whose sum is σ = 3776541912. Its totient is φ = 1725410736.

The previous prime is 2601322487. The next prime is 2601322553. The reversal of 2601322551 is 1552231062.

It is a happy number.

2601322551 is a `hidden beast` number, since 2 + 601 + 3 + 2 + 2 + 5 + 51 = 666.

It is not a de Polignac number, because 2601322551 - 2⁶ = 2601322487 is a prime.

It is a super-2 number, since 2×2601322551² = 13533758028682295202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2601322553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 731821 + ... + 735366.

It is an arithmetic number, because the mean of its divisors is an integer number (314711826).

Almost surely, 2^2601322551 is an apocalyptic number.

2601322551 is a deficient number, since it is larger than the sum of its proper divisors (1175219361).

2601322551 is a wasteful number, since it uses less digits than its factorization.

2601322551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1467390 (or 1467387 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 2601322551 is about 51003.1621666735. The cubic root of 2601322551 is about 1375.3019812324.

The spelling of 2601322551 in words is "two billion, six hundred one million, three hundred twenty-two thousand, five hundred fifty-one".