49811000 has 32 divisors (see below), whose sum is σ = 116560080. Its totient is φ = 19924000.

The previous prime is 49810997. The next prime is 49811029. The reversal of 49811000 is 11894.

It is a super-2 number, since 2×49811000² = 4962271442000000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23906 + ... + 25905.

Almost surely, 2^49811000 is an apocalyptic number.

49811000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

49811000 is an abundant number, since it is smaller than the sum of its proper divisors (66749080).

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

49811000 is a wasteful number, since it uses less digits than its factorization.

49811000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49832 (or 49818 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 49811000 is about 7057.6908404945. The cubic root of 49811000 is about 367.9383757870.

Adding to 49811000 its reverse (11894), we get a palindrome (49822894).

The spelling of 49811000 in words is "forty-nine million, eight hundred eleven thousand".