260722251 has 12 divisors (see below), whose sum is σ = 398751912. Its totient is φ = 163590336.

The previous prime is 260722243. The next prime is 260722277. The reversal of 260722251 is 152227062.

260722251 is a `hidden beast` number, since 2 + 607 + 2 + 2 + 2 + 51 = 666.

It is not a de Polignac number, because 260722251 - 2³ = 260722243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (260722291) 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, 851881 + ... + 852186.

It is an arithmetic number, because the mean of its divisors is an integer number (33229326).

Almost surely, 2^260722251 is an apocalyptic number.

260722251 is a deficient number, since it is larger than the sum of its proper divisors (138029661).

260722251 is a wasteful number, since it uses less digits than its factorization.

260722251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1704090 (or 1704087 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 260722251 is about 16146.8960175013. The cubic root of 260722251 is about 638.8408796567.

The spelling of 260722251 in words is "two hundred sixty million, seven hundred twenty-two thousand, two hundred fifty-one".