49544781 has 24 divisors (see below), whose sum is σ = 78204000. Its totient is φ = 27714720.

The previous prime is 49544779. The next prime is 49544791. The reversal of 49544781 is 18744594.

It is not a de Polignac number, because 49544781 - 2¹ = 49544779 is a prime.

It is a super-2 number, since 2×49544781² = 4909370648675922, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49544701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 531 + ... + 9968.

It is an arithmetic number, because the mean of its divisors is an integer number (3258500).

Almost surely, 2^49544781 is an apocalyptic number.

It is an amenable number.

49544781 is a deficient number, since it is larger than the sum of its proper divisors (28659219).

49544781 is a wasteful number, since it uses less digits than its factorization.

49544781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10537 (or 10526 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 49544781 is about 7038.8053673901. The cubic root of 49544781 is about 367.2817121922.

Multiplying 49544781 by its sum of digits (42), we get a palindrome (2080880802).

The spelling of 49544781 in words is "forty-nine million, five hundred forty-four thousand, seven hundred eighty-one".