272661553 has 2 divisors, whose sum is σ = 272661554. Its totient is φ = 272661552.

The previous prime is 272661539. The next prime is 272661563. The reversal of 272661553 is 355166272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 245329569 + 27331984 = 15663^2 + 5228^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-272661553 is a prime.

It is not a weakly prime, because it can be changed into another prime (272661503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136330776 + 136330777.

It is an arithmetic number, because the mean of its divisors is an integer number (136330777).

Almost surely, 2^272661553 is an apocalyptic number.

It is an amenable number.

272661553 is a deficient number, since it is larger than the sum of its proper divisors (1).

272661553 is an equidigital number, since it uses as much as digits as its factorization.

272661553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 37.

The square root of 272661553 is about 16512.4665934560. The cubic root of 272661553 is about 648.4472229322.

It can be divided in two parts, 272 and 661553, that added together give a triangular number (661825 = T₁₁₅₀).

The spelling of 272661553 in words is "two hundred seventy-two million, six hundred sixty-one thousand, five hundred fifty-three".