260447655 has 32 divisors (see below), whose sum is σ = 450604224. Its totient is φ = 127696896.

The previous prime is 260447651. The next prime is 260447657. The reversal of 260447655 is 556744062.

It is not a de Polignac number, because 260447655 - 2² = 260447651 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260447651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47517 + ... + 52713.

It is an arithmetic number, because the mean of its divisors is an integer number (14081382).

Almost surely, 2^260447655 is an apocalyptic number.

260447655 is a deficient number, since it is larger than the sum of its proper divisors (190156569).

260447655 is a wasteful number, since it uses less digits than its factorization.

260447655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5475.

The product of its (nonzero) digits is 201600, while the sum is 39.

The square root of 260447655 is about 16138.3907190277. The cubic root of 260447655 is about 638.6165224189.

The spelling of 260447655 in words is "two hundred sixty million, four hundred forty-seven thousand, six hundred fifty-five".