672725555 has 16 divisors (see below), whose sum is σ = 831013344. Its totient is φ = 522562560.

The previous prime is 672725539. The next prime is 672725569. The reversal of 672725555 is 555527276.

It is not a de Polignac number, because 672725555 - 2⁴ = 672725539 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12620 + ... + 38790.

It is an arithmetic number, because the mean of its divisors is an integer number (51938334).

Almost surely, 2^672725555 is an apocalyptic number.

672725555 is a deficient number, since it is larger than the sum of its proper divisors (158287789).

672725555 is a wasteful number, since it uses less digits than its factorization.

672725555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26326.

The product of its digits is 735000, while the sum is 44.

The square root of 672725555 is about 25936.9534641214. The cubic root of 672725555 is about 876.2189509030.

It can be divided in two parts, 67272 and 5555, that added together give a palindrome (72827).

The spelling of 672725555 in words is "six hundred seventy-two million, seven hundred twenty-five thousand, five hundred fifty-five".