49212503 has 4 divisors (see below), whose sum is σ = 49231728. Its totient is φ = 49193280.

The previous prime is 49212437. The next prime is 49212509. The reversal of 49212503 is 30521294.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30521294 = 2 ⋅15260647.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49212503 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49212509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5051 + ... + 11132.

It is an arithmetic number, because the mean of its divisors is an integer number (12307932).

Almost surely, 2^49212503 is an apocalyptic number.

49212503 is a deficient number, since it is larger than the sum of its proper divisors (19225).

49212503 is a wasteful number, since it uses less digits than its factorization.

49212503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19224.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 49212503 is about 7015.1623644788. The cubic root of 49212503 is about 366.4587968696.

Adding to 49212503 its reverse (30521294), we get a palindrome (79733797).

The spelling of 49212503 in words is "forty-nine million, two hundred twelve thousand, five hundred three".