648415554 has 8 divisors (see below), whose sum is σ = 1296831120. Its totient is φ = 216138516.

The previous prime is 648415549. The next prime is 648415567. The reversal of 648415554 is 455514846.

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

648415554 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54034624 + ... + 54034635.

It is an arithmetic number, because the mean of its divisors is an integer number (162103890).

Almost surely, 2^648415554 is an apocalyptic number.

648415554 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

648415554 is a wasteful number, since it uses less digits than its factorization.

648415554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108069264.

The product of its digits is 384000, while the sum is 42.

The square root of 648415554 is about 25464.0050659750. The cubic root of 648415554 is about 865.5346818477.

The spelling of 648415554 in words is "six hundred forty-eight million, four hundred fifteen thousand, five hundred fifty-four".