655925397 has 8 divisors (see below), whose sum is σ = 894906144. Its totient is φ = 427114128.

The previous prime is 655925383. The next prime is 655925407. The reversal of 655925397 is 793529556.

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

It is not a de Polignac number, because 655925397 - 2⁸ = 655925141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655925327) 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, 2542218 + ... + 2542475.

It is an arithmetic number, because the mean of its divisors is an integer number (111863268).

Almost surely, 2^655925397 is an apocalyptic number.

It is an amenable number.

655925397 is a deficient number, since it is larger than the sum of its proper divisors (238980747).

655925397 is a wasteful number, since it uses less digits than its factorization.

655925397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5084739.

The product of its digits is 2551500, while the sum is 51.

The square root of 655925397 is about 25611.0405294279. The cubic root of 655925397 is about 868.8633577595.

The spelling of 655925397 in words is "six hundred fifty-five million, nine hundred twenty-five thousand, three hundred ninety-seven".