245492477 has 2 divisors, whose sum is σ = 245492478. Its totient is φ = 245492476.

The previous prime is 245492417. The next prime is 245492557. The reversal of 245492477 is 774294542.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143664196 + 101828281 = 11986^2 + 10091^2 .

It is a cyclic number.

It is not a de Polignac number, because 245492477 - 2⁶ = 245492413 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 (245492417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122746238 + 122746239.

It is an arithmetic number, because the mean of its divisors is an integer number (122746239).

Almost surely, 2^245492477 is an apocalyptic number.

It is an amenable number.

245492477 is a deficient number, since it is larger than the sum of its proper divisors (1).

245492477 is an equidigital number, since it uses as much as digits as its factorization.

245492477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 564480, while the sum is 44.

The square root of 245492477 is about 15668.1995455764. The cubic root of 245492477 is about 626.1514577028.

The spelling of 245492477 in words is "two hundred forty-five million, four hundred ninety-two thousand, four hundred seventy-seven".