492550621 has 2 divisors, whose sum is σ = 492550622. Its totient is φ = 492550620.

The previous prime is 492550601. The next prime is 492550627. The reversal of 492550621 is 126055294.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 358685721 + 133864900 = 18939^2 + 11570^2 .

It is a cyclic number.

It is not a de Polignac number, because 492550621 - 2¹⁵ = 492517853 is a prime.

It is a super-2 number, since 2×492550621² = 485212228494971282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (492550627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246275310 + 246275311.

It is an arithmetic number, because the mean of its divisors is an integer number (246275311).

Almost surely, 2^492550621 is an apocalyptic number.

It is an amenable number.

492550621 is a deficient number, since it is larger than the sum of its proper divisors (1).

492550621 is an equidigital number, since it uses as much as digits as its factorization.

492550621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 492550621 is about 22193.4814979534. The cubic root of 492550621 is about 789.7390694103.

The spelling of 492550621 in words is "four hundred ninety-two million, five hundred fifty thousand, six hundred twenty-one".