49978503 has 12 divisors (see below), whose sum is σ = 72316920. Its totient is φ = 33260976.

The previous prime is 49978499. The next prime is 49978507. The reversal of 49978503 is 30587994.

It is an interprime number because it is at equal distance from previous prime (49978499) and next prime (49978507).

It is not a de Polignac number, because 49978503 - 2² = 49978499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49978507) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 988 + ... + 10046.

It is an arithmetic number, because the mean of its divisors is an integer number (6026410).

Almost surely, 2^49978503 is an apocalyptic number.

49978503 is a deficient number, since it is larger than the sum of its proper divisors (22338417).

49978503 is a wasteful number, since it uses less digits than its factorization.

49978503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9678 (or 9675 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 49978503 is about 7069.5475809984. The cubic root of 49978503 is about 368.3503452123.

The spelling of 49978503 in words is "forty-nine million, nine hundred seventy-eight thousand, five hundred three".