670407553 has 4 divisors (see below), whose sum is σ = 670459860. Its totient is φ = 670355248.

The previous prime is 670407503. The next prime is 670407559. The reversal of 670407553 is 355704076.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 233722944 + 436684609 = 15288^2 + 20897^2 .

It is a cyclic number.

It is not a de Polignac number, because 670407553 - 2²⁵ = 636853121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (670407559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7551 + ... + 37387.

It is an arithmetic number, because the mean of its divisors is an integer number (167614965).

Almost surely, 2^670407553 is an apocalyptic number.

It is an amenable number.

670407553 is a deficient number, since it is larger than the sum of its proper divisors (52307).

670407553 is a wasteful number, since it uses less digits than its factorization.

670407553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52306.

The product of its (nonzero) digits is 88200, while the sum is 37.

The square root of 670407553 is about 25892.2295872719. The cubic root of 670407553 is about 875.2114005676.

The spelling of 670407553 in words is "six hundred seventy million, four hundred seven thousand, five hundred fifty-three".