50721435 has 24 divisors (see below), whose sum is σ = 90951120. Its totient is φ = 26117952.

The previous prime is 50721409. The next prime is 50721443. The reversal of 50721435 is 53412705.

It is a happy number.

It is not a de Polignac number, because 50721435 - 2⁵ = 50721403 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50721399 and 50721408.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18129 + ... + 20738.

It is an arithmetic number, because the mean of its divisors is an integer number (3789630).

Almost surely, 2^50721435 is an apocalyptic number.

50721435 is a deficient number, since it is larger than the sum of its proper divisors (40229685).

50721435 is a wasteful number, since it uses less digits than its factorization.

50721435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38907 (or 38904 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 50721435 is about 7121.8982722305. The cubic root of 50721435 is about 370.1665551578.

The spelling of 50721435 in words is "fifty million, seven hundred twenty-one thousand, four hundred thirty-five".