654651055 has 4 divisors (see below), whose sum is σ = 785581272. Its totient is φ = 523720840.

The previous prime is 654651029. The next prime is 654651073. The reversal of 654651055 is 550156456.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 654651055 - 2¹¹ = 654649007 is a prime.

It is a super-2 number, since 2×654651055² = 857136007625226050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65465101 + ... + 65465110.

It is an arithmetic number, because the mean of its divisors is an integer number (196395318).

Almost surely, 2^654651055 is an apocalyptic number.

654651055 is a deficient number, since it is larger than the sum of its proper divisors (130930217).

654651055 is a wasteful number, since it uses less digits than its factorization.

654651055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130930216.

The product of its (nonzero) digits is 90000, while the sum is 37.

The square root of 654651055 is about 25586.1496712577. The cubic root of 654651055 is about 868.3003125837.

The spelling of 654651055 in words is "six hundred fifty-four million, six hundred fifty-one thousand, fifty-five".