49722187 has 4 divisors (see below), whose sum is σ = 49754736. Its totient is φ = 49689640.

The previous prime is 49722181. The next prime is 49722227. The reversal of 49722187 is 78122794.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49722187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49722181) 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, 13864 + ... + 17077.

It is an arithmetic number, because the mean of its divisors is an integer number (12438684).

Almost surely, 2^49722187 is an apocalyptic number.

49722187 is a deficient number, since it is larger than the sum of its proper divisors (32549).

49722187 is a wasteful number, since it uses less digits than its factorization.

49722187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32548.

The product of its digits is 56448, while the sum is 40.

The square root of 49722187 is about 7051.3961029005. The cubic root of 49722187 is about 367.7195676812.

The spelling of 49722187 in words is "forty-nine million, seven hundred twenty-two thousand, one hundred eighty-seven".