612505051 has 2 divisors, whose sum is σ = 612505052. Its totient is φ = 612505050.

The previous prime is 612505043. The next prime is 612505093. The reversal of 612505051 is 150505216.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 612505051 - 2³ = 612505043 is a prime.

It is not a weakly prime, because it can be changed into another prime (612505021) 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, 306252525 + 306252526.

It is an arithmetic number, because the mean of its divisors is an integer number (306252526).

Almost surely, 2^612505051 is an apocalyptic number.

612505051 is a deficient number, since it is larger than the sum of its proper divisors (1).

612505051 is an equidigital number, since it uses as much as digits as its factorization.

612505051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 612505051 is about 24748.8393869288. The cubic root of 612505051 is about 849.2519605688.

The spelling of 612505051 in words is "six hundred twelve million, five hundred five thousand, fifty-one".