550072157 has 2 divisors, whose sum is σ = 550072158. Its totient is φ = 550072156.

The previous prime is 550072139. The next prime is 550072177. The reversal of 550072157 is 751270055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 468549316 + 81522841 = 21646^2 + 9029^2 .

It is a cyclic number.

It is not a de Polignac number, because 550072157 - 2¹⁶ = 550006621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550072177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275036078 + 275036079.

It is an arithmetic number, because the mean of its divisors is an integer number (275036079).

Almost surely, 2^550072157 is an apocalyptic number.

It is an amenable number.

550072157 is a deficient number, since it is larger than the sum of its proper divisors (1).

550072157 is an equidigital number, since it uses as much as digits as its factorization.

550072157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12250, while the sum is 32.

The square root of 550072157 is about 23453.6171410723. The cubic root of 550072157 is about 819.3570991944.

The spelling of 550072157 in words is "five hundred fifty million, seventy-two thousand, one hundred fifty-seven".