252457477 has 2 divisors, whose sum is σ = 252457478. Its totient is φ = 252457476.

The previous prime is 252457451. The next prime is 252457507. The reversal of 252457477 is 774754252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188952516 + 63504961 = 13746^2 + 7969^2 .

It is a cyclic number.

It is not a de Polignac number, because 252457477 - 2¹⁹ = 251933189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252457417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126228738 + 126228739.

It is an arithmetic number, because the mean of its divisors is an integer number (126228739).

Almost surely, 2^252457477 is an apocalyptic number.

It is an amenable number.

252457477 is a deficient number, since it is larger than the sum of its proper divisors (1).

252457477 is an equidigital number, since it uses as much as digits as its factorization.

252457477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 548800, while the sum is 43.

The square root of 252457477 is about 15888.9105038703. The cubic root of 252457477 is about 632.0179495049.

The spelling of 252457477 in words is "two hundred fifty-two million, four hundred fifty-seven thousand, four hundred seventy-seven".