655415523 has 24 divisors (see below), whose sum is σ = 1129516560. Its totient is φ = 374522400.

The previous prime is 655415513. The next prime is 655415531. The reversal of 655415523 is 325514556.

655415523 is a `hidden beast` number, since 65 + 5 + 41 + 552 + 3 = 666.

It is not a de Polignac number, because 655415523 - 2⁶ = 655415459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (655415513) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 246378 + ... + 249023.

It is an arithmetic number, because the mean of its divisors is an integer number (47063190).

Almost surely, 2^655415523 is an apocalyptic number.

655415523 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

655415523 is a deficient number, since it is larger than the sum of its proper divisors (474101037).

655415523 is a wasteful number, since it uses less digits than its factorization.

655415523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495424 (or 495411 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The square root of 655415523 is about 25601.0844106260. The cubic root of 655415523 is about 868.6381666648.

The spelling of 655415523 in words is "six hundred fifty-five million, four hundred fifteen thousand, five hundred twenty-three".