50721434 has 8 divisors (see below), whose sum is σ = 76229748. Its totient is φ = 25311520.

The previous prime is 50721409. The next prime is 50721443. The reversal of 50721434 is 43412705.

50721434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 50367409 + 354025 = 7097^2 + 595^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×50721434³ (a number of 24 digits) contains 333 as substring.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 23297 + ... + 25380.

Almost surely, 2^50721434 is an apocalyptic number.

50721434 is a deficient number, since it is larger than the sum of its proper divisors (25508314).

50721434 is a wasteful number, since it uses less digits than its factorization.

50721434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49200.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 50721434 is about 7121.8982020245. The cubic root of 50721434 is about 370.1665527251.

The spelling of 50721434 in words is "fifty million, seven hundred twenty-one thousand, four hundred thirty-four".