613504655 has 8 divisors (see below), whose sum is σ = 739695984. Its totient is φ = 488476800.

The previous prime is 613504651. The next prime is 613504673. The reversal of 613504655 is 556405316.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 613504655 - 2² = 613504651 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 (613504651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289706 + ... + 291815.

It is an arithmetic number, because the mean of its divisors is an integer number (92461998).

Almost surely, 2^613504655 is an apocalyptic number.

613504655 is a deficient number, since it is larger than the sum of its proper divisors (126191329).

613504655 is a wasteful number, since it uses less digits than its factorization.

613504655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581737.

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 613504655 is about 24769.0261213476. The cubic root of 613504655 is about 849.7137005798.

The spelling of 613504655 in words is "six hundred thirteen million, five hundred four thousand, six hundred fifty-five".