655126607 has 4 divisors (see below), whose sum is σ = 658913640. Its totient is φ = 651339576.

The previous prime is 655126583. The next prime is 655126613. The reversal of 655126607 is 706621556.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 655126607 - 2¹⁴ = 655110223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655126657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1893257 + ... + 1893602.

It is an arithmetic number, because the mean of its divisors is an integer number (164728410).

Almost surely, 2^655126607 is an apocalyptic number.

655126607 is a deficient number, since it is larger than the sum of its proper divisors (3787033).

655126607 is a wasteful number, since it uses less digits than its factorization.

655126607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3787032.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 655126607 is about 25595.4411370463. The cubic root of 655126607 is about 868.5105121002.

The spelling of 655126607 in words is "six hundred fifty-five million, one hundred twenty-six thousand, six hundred seven".