672507554 has 8 divisors (see below), whose sum is σ = 1025298588. Its totient is φ = 330741360.

The previous prime is 672507541. The next prime is 672507559. The reversal of 672507554 is 455705276.

It can be written as a sum of positive squares in 2 ways, for example, as 670033225 + 2474329 = 25885^2 + 1573^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (672507559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2756057 + ... + 2756300.

Almost surely, 2^672507554 is an apocalyptic number.

672507554 is a deficient number, since it is larger than the sum of its proper divisors (352791034).

672507554 is a wasteful number, since it uses less digits than its factorization.

672507554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5512420.

The product of its (nonzero) digits is 294000, while the sum is 41.

The square root of 672507554 is about 25932.7506061351. The cubic root of 672507554 is about 876.1242925672.

The spelling of 672507554 in words is "six hundred seventy-two million, five hundred seven thousand, five hundred fifty-four".