675747557 has 4 divisors (see below), whose sum is σ = 676726176. Its totient is φ = 674768940.

The previous prime is 675747551. The next prime is 675747563. The reversal of 675747557 is 755747576.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (675747551) and next prime (675747563).

It is a cyclic number.

It is not a de Polignac number, because 675747557 - 2⁸ = 675747301 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 675747499 and 675747508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675747551) 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, 488273 + ... + 489654.

It is an arithmetic number, because the mean of its divisors is an integer number (169181544).

Almost surely, 2^675747557 is an apocalyptic number.

It is an amenable number.

675747557 is a deficient number, since it is larger than the sum of its proper divisors (978619).

675747557 is an equidigital number, since it uses as much as digits as its factorization.

675747557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978618.

The product of its digits is 7203000, while the sum is 53.

The square root of 675747557 is about 25995.1448736105. The cubic root of 675747557 is about 877.5290345720.

The spelling of 675747557 in words is "six hundred seventy-five million, seven hundred forty-seven thousand, five hundred fifty-seven".