492051557 has 2 divisors, whose sum is σ = 492051558. Its totient is φ = 492051556.

The previous prime is 492051533. The next prime is 492051643. The reversal of 492051557 is 755150294.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 255168676 + 236882881 = 15974^2 + 15391^2 .

It is a cyclic number.

It is not a de Polignac number, because 492051557 - 2¹⁶ = 491986021 is a prime.

It is a super-2 number, since 2×492051557² = 484229469492248498, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 492051557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (492051457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246025778 + 246025779.

It is an arithmetic number, because the mean of its divisors is an integer number (246025779).

Almost surely, 2^492051557 is an apocalyptic number.

It is an amenable number.

492051557 is a deficient number, since it is larger than the sum of its proper divisors (1).

492051557 is an equidigital number, since it uses as much as digits as its factorization.

492051557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63000, while the sum is 38.

The square root of 492051557 is about 22182.2351669078. The cubic root of 492051557 is about 789.4722518074.

The spelling of 492051557 in words is "four hundred ninety-two million, fifty-one thousand, five hundred fifty-seven".