654939522 has 12 divisors (see below), whose sum is σ = 1419035670. Its totient is φ = 218313168.

The previous prime is 654939491. The next prime is 654939529. The reversal of 654939522 is 225939456.

It can be written as a sum of positive squares in only one way, i.e., 572692761 + 82246761 = 23931^2 + 9069^2 .

It is not an unprimeable number, because it can be changed into a prime (654939529) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18192747 + ... + 18192782.

Almost surely, 2^654939522 is an apocalyptic number.

654939522 is an abundant number, since it is smaller than the sum of its proper divisors (764096148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

654939522 is a wasteful number, since it uses less digits than its factorization.

654939522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36385537 (or 36385534 counting only the distinct ones).

The product of its digits is 583200, while the sum is 45.

The square root of 654939522 is about 25591.7862213641. The cubic root of 654939522 is about 868.4278304949.

The spelling of 654939522 in words is "six hundred fifty-four million, nine hundred thirty-nine thousand, five hundred twenty-two".