50445521 has 8 divisors (see below), whose sum is σ = 57696384. Its totient is φ = 43205760.

The previous prime is 50445503. The next prime is 50445557. The reversal of 50445521 is 12554405.

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

It is a cyclic number.

It is not a de Polignac number, because 50445521 - 2²² = 46251217 is a prime.

It is a super-2 number, since 2×50445521² = 5089501177922882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50445581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12836 + ... + 16298.

It is an arithmetic number, because the mean of its divisors is an integer number (7212048).

Almost surely, 2^50445521 is an apocalyptic number.

It is an amenable number.

50445521 is a deficient number, since it is larger than the sum of its proper divisors (7250863).

50445521 is a wasteful number, since it uses less digits than its factorization.

50445521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5551.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 50445521 is about 7102.5010383667. The cubic root of 50445521 is about 369.4941248349.

Adding to 50445521 its reverse (12554405), we get a palindrome (62999926).

The spelling of 50445521 in words is "fifty million, four hundred forty-five thousand, five hundred twenty-one".