724553 has 2 divisors, whose sum is σ = 724554. Its totient is φ = 724552.

The previous prime is 724547. The next prime is 724567. The reversal of 724553 is 355427.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 466489 + 258064 = 683^2 + 508^2 .

It is an emirp because it is prime and its reverse (355427) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 724553 - 2¹⁰ = 723529 is a prime.

It is equal to p₅₈₃₈₂ and since 724553 and 58382 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (724513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362276 + 362277.

It is an arithmetic number, because the mean of its divisors is an integer number (362277).

2⁷²⁴⁵⁵³ is an apocalyptic number.

It is an amenable number.

724553 is a deficient number, since it is larger than the sum of its proper divisors (1).

724553 is an equidigital number, since it uses as much as digits as its factorization.

724553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4200, while the sum is 26.

The square root of 724553 is about 851.2067903864. The cubic root of 724553 is about 89.8166225018.

The spelling of 724553 in words is "seven hundred twenty-four thousand, five hundred fifty-three".