50981472 has 36 divisors (see below), whose sum is σ = 144979380. Its totient is φ = 16993728.

The previous prime is 50981443. The next prime is 50981473. The reversal of 50981472 is 27418905.

50981472 is a `hidden beast` number, since 509 + 8 + 147 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×50981472² = 5198220974573568, which contains 22 as substring.

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

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50981473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 88222 + ... + 88797.

It is an arithmetic number, because the mean of its divisors is an integer number (4027205).

Almost surely, 2^50981472 is an apocalyptic number.

It is an amenable number.

50981472 is an abundant number, since it is smaller than the sum of its proper divisors (93997908).

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

50981472 is a wasteful number, since it uses less digits than its factorization.

50981472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177035 (or 177024 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 50981472 is about 7140.1310912335. The cubic root of 50981472 is about 370.7980631298.

The spelling of 50981472 in words is "fifty million, nine hundred eighty-one thousand, four hundred seventy-two".