172059553 has 2 divisors, whose sum is σ = 172059554. Its totient is φ = 172059552.

The previous prime is 172059541. The next prime is 172059577. The reversal of 172059553 is 355950271.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156950784 + 15108769 = 12528^2 + 3887^2 .

It is a cyclic number.

It is not a de Polignac number, because 172059553 - 2¹³ = 172051361 is a prime.

It is not a weakly prime, because it can be changed into another prime (172059353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86029776 + 86029777.

It is an arithmetic number, because the mean of its divisors is an integer number (86029777).

Almost surely, 2^172059553 is an apocalyptic number.

It is an amenable number.

172059553 is a deficient number, since it is larger than the sum of its proper divisors (1).

172059553 is an equidigital number, since it uses as much as digits as its factorization.

172059553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47250, while the sum is 37.

The square root of 172059553 is about 13117.1472889497. The cubic root of 172059553 is about 556.1939537354.

The spelling of 172059553 in words is "one hundred seventy-two million, fifty-nine thousand, five hundred fifty-three".