724734553 has 2 divisors, whose sum is σ = 724734554. Its totient is φ = 724734552.

The previous prime is 724734551. The next prime is 724734557. The reversal of 724734553 is 355437427.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 605553664 + 119180889 = 24608^2 + 10917^2 .

It is a cyclic number.

It is not a de Polignac number, because 724734553 - 2¹ = 724734551 is a prime.

Together with 724734551, it forms a pair of twin primes.

It is equal to p_37466491 and since 724734553 and 37466491 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 (724734551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362367276 + 362367277.

It is an arithmetic number, because the mean of its divisors is an integer number (362367277).

Almost surely, 2^724734553 is an apocalyptic number.

It is an amenable number.

724734553 is a deficient number, since it is larger than the sum of its proper divisors (1).

724734553 is an equidigital number, since it uses as much as digits as its factorization.

724734553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 352800, while the sum is 40.

The square root of 724734553 is about 26920.8943573574. The cubic root of 724734553 is about 898.2412373151.

The spelling of 724734553 in words is "seven hundred twenty-four million, seven hundred thirty-four thousand, five hundred fifty-three".