189056503 has 2 divisors, whose sum is σ = 189056504. Its totient is φ = 189056502.

The previous prime is 189056489. The next prime is 189056521. The reversal of 189056503 is 305650981.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 189056503 - 2¹³ = 189048311 is a prime.

It is a super-2 number, since 2×189056503² = 71484722653178018, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189056533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94528251 + 94528252.

It is an arithmetic number, because the mean of its divisors is an integer number (94528252).

Almost surely, 2^189056503 is an apocalyptic number.

189056503 is a deficient number, since it is larger than the sum of its proper divisors (1).

189056503 is an equidigital number, since it uses as much as digits as its factorization.

189056503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 189056503 is about 13749.7819255434. The cubic root of 189056503 is about 573.9365376790.

The spelling of 189056503 in words is "one hundred eighty-nine million, fifty-six thousand, five hundred three".