425155777 has 2 divisors, whose sum is σ = 425155778. Its totient is φ = 425155776.

The previous prime is 425155733. The next prime is 425155813. The reversal of 425155777 is 777551524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 367258896 + 57896881 = 19164^2 + 7609^2 .

It is a cyclic number.

It is not a de Polignac number, because 425155777 - 2⁷ = 425155649 is a prime.

It is not a weakly prime, because it can be changed into another prime (425155727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212577888 + 212577889.

It is an arithmetic number, because the mean of its divisors is an integer number (212577889).

Almost surely, 2^425155777 is an apocalyptic number.

It is an amenable number.

425155777 is a deficient number, since it is larger than the sum of its proper divisors (1).

425155777 is an equidigital number, since it uses as much as digits as its factorization.

425155777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 343000, while the sum is 43.

The square root of 425155777 is about 20619.3059291529. The cubic root of 425155777 is about 751.9391461103.

The spelling of 425155777 in words is "four hundred twenty-five million, one hundred fifty-five thousand, seven hundred seventy-seven".