620553151 has 2 divisors, whose sum is σ = 620553152. Its totient is φ = 620553150.

The previous prime is 620553139. The next prime is 620553181. The reversal of 620553151 is 151355026.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 620553151 - 2⁵ = 620553119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (620553181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310276575 + 310276576.

It is an arithmetic number, because the mean of its divisors is an integer number (310276576).

Almost surely, 2^620553151 is an apocalyptic number.

620553151 is a deficient number, since it is larger than the sum of its proper divisors (1).

620553151 is an equidigital number, since it uses as much as digits as its factorization.

620553151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 620553151 is about 24910.9042589786. The cubic root of 620553151 is about 852.9554105352.

The spelling of 620553151 in words is "six hundred twenty million, five hundred fifty-three thousand, one hundred fifty-one".