649454554 has 16 divisors (see below), whose sum is σ = 1137040128. Its totient is φ = 272415312.

The previous prime is 649454549. The next prime is 649454563. The reversal of 649454554 is 455454946.

It is a super-2 number, since 2×649454554² = 843582435422677832, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492849 + ... + 494164.

It is an arithmetic number, because the mean of its divisors is an integer number (71065008).

Almost surely, 2^649454554 is an apocalyptic number.

649454554 is a deficient number, since it is larger than the sum of its proper divisors (487585574).

649454554 is a wasteful number, since it uses less digits than its factorization.

649454554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987069.

The product of its digits is 1728000, while the sum is 46.

The square root of 649454554 is about 25484.3982467705. The cubic root of 649454554 is about 865.9967366851.

The spelling of 649454554 in words is "six hundred forty-nine million, four hundred fifty-four thousand, five hundred fifty-four".