725345335177 has 2 divisors, whose sum is σ = 725345335178. Its totient is φ = 725345335176.

The previous prime is 725345335147. The next prime is 725345335201. The reversal of 725345335177 is 771533543527.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 685897019721 + 39448315456 = 828189^2 + 198616^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-725345335177 is a prime.

It is a super-2 number, since 2×725345335177² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (725345335147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362672667588 + 362672667589.

It is an arithmetic number, because the mean of its divisors is an integer number (362672667589).

Almost surely, 2^725345335177 is an apocalyptic number.

It is an amenable number.

725345335177 is a deficient number, since it is larger than the sum of its proper divisors (1).

725345335177 is an equidigital number, since it uses as much as digits as its factorization.

725345335177 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9261000, while the sum is 52.

The spelling of 725345335177 in words is "seven hundred twenty-five billion, three hundred forty-five million, three hundred thirty-five thousand, one hundred seventy-seven".