49172503 has 2 divisors, whose sum is σ = 49172504. Its totient is φ = 49172502.

The previous prime is 49172491. The next prime is 49172507. The reversal of 49172503 is 30527194.

49172503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49172503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49172507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24586251 + 24586252.

It is an arithmetic number, because the mean of its divisors is an integer number (24586252).

Almost surely, 2^49172503 is an apocalyptic number.

49172503 is a deficient number, since it is larger than the sum of its proper divisors (1).

49172503 is an equidigital number, since it uses as much as digits as its factorization.

49172503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 49172503 is about 7012.3108174125. The cubic root of 49172503 is about 366.3594838616.

Adding to 49172503 its reverse (30527194), we get a palindrome (79699697).

The spelling of 49172503 in words is "forty-nine million, one hundred seventy-two thousand, five hundred three".