620552951 has 2 divisors, whose sum is σ = 620552952. Its totient is φ = 620552950.

The previous prime is 620552929. The next prime is 620552957. The reversal of 620552951 is 159255026.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 620552951 - 2¹⁰ = 620551927 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620552957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310276475 + 310276476.

It is an arithmetic number, because the mean of its divisors is an integer number (310276476).

Almost surely, 2^620552951 is an apocalyptic number.

620552951 is a deficient number, since it is larger than the sum of its proper divisors (1).

620552951 is an equidigital number, since it uses as much as digits as its factorization.

620552951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 620552951 is about 24910.9002446720. The cubic root of 620552951 is about 852.9553189013.

The spelling of 620552951 in words is "six hundred twenty million, five hundred fifty-two thousand, nine hundred fifty-one".