50721264 has 180 divisors, whose sum is σ = 162083376. Its totient is φ = 14784000.

The previous prime is 50721259. The next prime is 50721269. The reversal of 50721264 is 46212705.

50721264 = T₇₉ + T₈₀ + ... + T₆₇₂.

50721264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (50721259) and next prime (50721269).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50721269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 714349 + ... + 714419.

Almost surely, 2^50721264 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 50721264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81041688).

50721264 is an abundant number, since it is smaller than the sum of its proper divisors (111362112).

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

50721264 is a wasteful number, since it uses less digits than its factorization.

50721264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 50721264 is about 7121.8862669942. The cubic root of 50721264 is about 370.1661391696.

Adding to 50721264 its reverse (46212705), we get a palindrome (96933969).

It can be divided in two parts, 5072 and 1264, that added together give a palindrome (6336).

The spelling of 50721264 in words is "fifty million, seven hundred twenty-one thousand, two hundred sixty-four".