260650551 has 24 divisors (see below), whose sum is σ = 404941680. Its totient is φ = 148697472.

The previous prime is 260650549. The next prime is 260650561. The reversal of 260650551 is 155056062.

It is not a de Polignac number, because 260650551 - 2¹ = 260650549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260650541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124945 + ... + 127013.

It is an arithmetic number, because the mean of its divisors is an integer number (16872570).

Almost surely, 2^260650551 is an apocalyptic number.

260650551 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

260650551 is a deficient number, since it is larger than the sum of its proper divisors (144291129).

260650551 is a wasteful number, since it uses less digits than its factorization.

260650551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2943 (or 2936 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 260650551 is about 16144.6756238706. The cubic root of 260650551 is about 638.7823127458.

The spelling of 260650551 in words is "two hundred sixty million, six hundred fifty thousand, five hundred fifty-one".