49811544 has 128 divisors (see below), whose sum is σ = 146995200. Its totient is φ = 15603840.

The previous prime is 49811519. The next prime is 49811551. The reversal of 49811544 is 44511894.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 49811499 and 49811508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 287842 + ... + 288014.

It is an arithmetic number, because the mean of its divisors is an integer number (1148400).

Almost surely, 2^49811544 is an apocalyptic number.

49811544 is the 4464-th heptagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49811544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73497600).

49811544 is an abundant number, since it is smaller than the sum of its proper divisors (97183656).

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

49811544 is a wasteful number, since it uses less digits than its factorization.

49811544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 252 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 49811544 is about 7057.7293799068. The cubic root of 49811544 is about 367.9397152351.

The spelling of 49811544 in words is "forty-nine million, eight hundred eleven thousand, five hundred forty-four".