50515272 has 64 divisors (see below), whose sum is σ = 141825600. Its totient is φ = 16657920.

The previous prime is 50515247. The next prime is 50515277. The reversal of 50515272 is 27251505.

It is a happy number.

50515272 is a `hidden beast` number, since 505 + 152 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (50515277) 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, 19747 + ... + 22157.

It is an arithmetic number, because the mean of its divisors is an integer number (2216025).

Almost surely, 2^50515272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50515272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70912800).

50515272 is an abundant number, since it is smaller than the sum of its proper divisors (91310328).

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

50515272 is a wasteful number, since it uses less digits than its factorization.

50515272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2523 (or 2513 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 50515272 is about 7107.4096547195. The cubic root of 50515272 is about 369.6643461927.

Adding to 50515272 its reverse (27251505), we get a palindrome (77766777).

The spelling of 50515272 in words is "fifty million, five hundred fifteen thousand, two hundred seventy-two".