50181612 has 48 divisors (see below), whose sum is σ = 126669312. Its totient is φ = 15370560.

The previous prime is 50181611. The next prime is 50181623. The reversal of 50181612 is 21618105.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (50181611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41683 + ... + 42869.

It is an arithmetic number, because the mean of its divisors is an integer number (2638944).

Almost surely, 2^50181612 is an apocalyptic number.

50181612 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50181612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63334656).

50181612 is an abundant number, since it is smaller than the sum of its proper divisors (76487700).

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

50181612 is a wasteful number, since it uses less digits than its factorization.

50181612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478 (or 1476 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 50181612 is about 7083.8980794475. The cubic root of 50181612 is about 368.8486537919.

Adding to 50181612 its reverse (21618105), we get a palindrome (71799717).

The spelling of 50181612 in words is "fifty million, one hundred eighty-one thousand, six hundred twelve".