550402969 has 2 divisors, whose sum is σ = 550402970. Its totient is φ = 550402968.

The previous prime is 550402927. The next prime is 550403059. The reversal of 550402969 is 969204055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 533055744 + 17347225 = 23088^2 + 4165^2 .

It is a cyclic number.

It is not a de Polignac number, because 550402969 - 2⁷ = 550402841 is a prime.

It is a super-2 number, since 2×550402969² = 605886856568029922, which contains 22 as substring.

It is equal to p_28865470 and since 550402969 and 28865470 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (550402169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275201484 + 275201485.

It is an arithmetic number, because the mean of its divisors is an integer number (275201485).

Almost surely, 2^550402969 is an apocalyptic number.

It is an amenable number.

550402969 is a deficient number, since it is larger than the sum of its proper divisors (1).

550402969 is an equidigital number, since it uses as much as digits as its factorization.

550402969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 550402969 is about 23460.6685539863. The cubic root of 550402969 is about 819.5213193720.

The spelling of 550402969 in words is "five hundred fifty million, four hundred two thousand, nine hundred sixty-nine".