623555041 has 2 divisors, whose sum is σ = 623555042. Its totient is φ = 623555040.

The previous prime is 623554961. The next prime is 623555059. The reversal of 623555041 is 140555326.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 619810816 + 3744225 = 24896^2 + 1935^2 .

It is a cyclic number.

It is not a de Polignac number, because 623555041 - 2¹³ = 623546849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 623554994 and 623555012.

It is not a weakly prime, because it can be changed into another prime (623555081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311777520 + 311777521.

It is an arithmetic number, because the mean of its divisors is an integer number (311777521).

Almost surely, 2^623555041 is an apocalyptic number.

It is an amenable number.

623555041 is a deficient number, since it is larger than the sum of its proper divisors (1).

623555041 is an equidigital number, since it uses as much as digits as its factorization.

623555041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 623555041 is about 24971.0840974115. The cubic root of 623555041 is about 854.3285728777.

The spelling of 623555041 in words is "six hundred twenty-three million, five hundred fifty-five thousand, forty-one".