272999557 has 2 divisors, whose sum is σ = 272999558. Its totient is φ = 272999556.

The previous prime is 272999513. The next prime is 272999567. The reversal of 272999557 is 755999272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 260951716 + 12047841 = 16154^2 + 3471^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-272999557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 272999498 and 272999507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (272999567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136499778 + 136499779.

It is an arithmetic number, because the mean of its divisors is an integer number (136499779).

Almost surely, 2^272999557 is an apocalyptic number.

It is an amenable number.

272999557 is a deficient number, since it is larger than the sum of its proper divisors (1).

272999557 is an equidigital number, since it uses as much as digits as its factorization.

272999557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3572100, while the sum is 55.

The square root of 272999557 is about 16522.6982360630. The cubic root of 272999557 is about 648.7150607790.

It can be divided in two parts, 27299 and 9557, that added together give a triangular number (36856 = T₂₇₁).

The spelling of 272999557 in words is "two hundred seventy-two million, nine hundred ninety-nine thousand, five hundred fifty-seven".