49172903 has 4 divisors (see below), whose sum is σ = 52955448. Its totient is φ = 45390360.

The previous prime is 49172897. The next prime is 49172909. The reversal of 49172903 is 30927194.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30927194 = 2 ⋅15463597.

It is an interprime number because it is at equal distance from previous prime (49172897) and next prime (49172909).

It is a cyclic number.

It is not a de Polignac number, because 49172903 - 2²⁴ = 32395687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49172909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1891253 + ... + 1891278.

It is an arithmetic number, because the mean of its divisors is an integer number (13238862).

Almost surely, 2^49172903 is an apocalyptic number.

49172903 is a deficient number, since it is larger than the sum of its proper divisors (3782545).

49172903 is a wasteful number, since it uses less digits than its factorization.

49172903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3782544.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 49172903 is about 7012.3393386230. The cubic root of 49172903 is about 366.3604772582.

The spelling of 49172903 in words is "forty-nine million, one hundred seventy-two thousand, nine hundred three".