550456157 has 2 divisors, whose sum is σ = 550456158. Its totient is φ = 550456156.

The previous prime is 550456147. The next prime is 550456177. The reversal of 550456157 is 751654055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 550418521 + 37636 = 23461^2 + 194^2 .

It is a cyclic number.

It is not a de Polignac number, because 550456157 - 2⁸ = 550455901 is a prime.

It is a super-3 number, since 3×550456157³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 550456157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550456117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275228078 + 275228079.

It is an arithmetic number, because the mean of its divisors is an integer number (275228079).

Almost surely, 2^550456157 is an apocalyptic number.

It is an amenable number.

550456157 is a deficient number, since it is larger than the sum of its proper divisors (1).

550456157 is an equidigital number, since it uses as much as digits as its factorization.

550456157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105000, while the sum is 38.

The square root of 550456157 is about 23461.8020833865. The cubic root of 550456157 is about 819.5477165746.

The spelling of 550456157 in words is "five hundred fifty million, four hundred fifty-six thousand, one hundred fifty-seven".