624253061 has 2 divisors, whose sum is σ = 624253062. Its totient is φ = 624253060.

The previous prime is 624252991. The next prime is 624253067. The reversal of 624253061 is 160352426.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 393030625 + 231222436 = 19825^2 + 15206^2 .

It is a cyclic number.

It is not a de Polignac number, because 624253061 - 2²² = 620058757 is a prime.

It is a super-3 number, since 3×624253061³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (624253067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312126530 + 312126531.

It is an arithmetic number, because the mean of its divisors is an integer number (312126531).

Almost surely, 2^624253061 is an apocalyptic number.

It is an amenable number.

624253061 is a deficient number, since it is larger than the sum of its proper divisors (1).

624253061 is an equidigital number, since it uses as much as digits as its factorization.

624253061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 624253061 is about 24985.0567539880. The cubic root of 624253061 is about 854.6472381715.

The spelling of 624253061 in words is "six hundred twenty-four million, two hundred fifty-three thousand, sixty-one".