655045493 has 8 divisors (see below), whose sum is σ = 658790496. Its totient is φ = 651310000.

The previous prime is 655045483. The next prime is 655045507. The reversal of 655045493 is 394540556.

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

It is a cyclic number.

It is not a de Polignac number, because 655045493 - 2⁴ = 655045477 is a prime.

It is a super-2 number, since 2×655045493² = 858169195799226098, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 655045493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655045403) 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, 169523 + ... + 173343.

It is an arithmetic number, because the mean of its divisors is an integer number (82348812).

Almost surely, 2^655045493 is an apocalyptic number.

It is an amenable number.

655045493 is a deficient number, since it is larger than the sum of its proper divisors (3745003).

655045493 is a wasteful number, since it uses less digits than its factorization.

655045493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4755.

The product of its (nonzero) digits is 324000, while the sum is 41.

The square root of 655045493 is about 25593.8565480078. The cubic root of 655045493 is about 868.4746659657.

The spelling of 655045493 in words is "six hundred fifty-five million, forty-five thousand, four hundred ninety-three".