49565772 has 18 divisors (see below), whose sum is σ = 125291348. Its totient is φ = 16521912.

The previous prime is 49565771. The next prime is 49565773. The reversal of 49565772 is 27756594.

It is an interprime number because it is at equal distance from previous prime (49565771) and next prime (49565773).

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (49565771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 688378 + ... + 688449.

Almost surely, 2^49565772 is an apocalyptic number.

It is an amenable number.

49565772 is an abundant number, since it is smaller than the sum of its proper divisors (75725576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49565772 is a wasteful number, since it uses less digits than its factorization.

49565772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376837 (or 1376832 counting only the distinct ones).

The product of its digits is 529200, while the sum is 45.

The square root of 49565772 is about 7040.2963005828. The cubic root of 49565772 is about 367.3335745123. Note that the first 3 decimals are identical.

The spelling of 49565772 in words is "forty-nine million, five hundred sixty-five thousand, seven hundred seventy-two".