654426552 has 64 divisors (see below), whose sum is σ = 1778474880. Its totient is φ = 199469952.

The previous prime is 654426497. The next prime is 654426559. The reversal of 654426552 is 255624456.

It is a super-2 number, since 2×654426552² = 856548223925217408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 654426552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654426559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23583 + ... + 43185.

It is an arithmetic number, because the mean of its divisors is an integer number (27788670).

Almost surely, 2^654426552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 654426552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (889237440).

654426552 is an abundant number, since it is smaller than the sum of its proper divisors (1124048328).

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

654426552 is a wasteful number, since it uses less digits than its factorization.

654426552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19732 (or 19728 counting only the distinct ones).

The product of its digits is 288000, while the sum is 39.

The square root of 654426552 is about 25581.7620972442. The cubic root of 654426552 is about 868.2010442731.

The spelling of 654426552 in words is "six hundred fifty-four million, four hundred twenty-six thousand, five hundred fifty-two".