654180056 has 8 divisors (see below), whose sum is σ = 1226587620. Its totient is φ = 327090024.

The previous prime is 654180049. The next prime is 654180101. The reversal of 654180056 is 650081456.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 654179998 and 654180025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40886246 + ... + 40886261.

Almost surely, 2^654180056 is an apocalyptic number.

It is an amenable number.

654180056 is a deficient number, since it is larger than the sum of its proper divisors (572407564).

654180056 is a wasteful number, since it uses less digits than its factorization.

654180056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81772513 (or 81772509 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 654180056 is about 25576.9438361975. The cubic root of 654180056 is about 868.0920251841.

The spelling of 654180056 in words is "six hundred fifty-four million, one hundred eighty thousand, fifty-six".