50445104521 has 12 divisors (see below), whose sum is σ = 58820448900. Its totient is φ = 43135938720.

The previous prime is 50445104509. The next prime is 50445104573. The reversal of 50445104521 is 12540154405.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20295991296 + 30149113225 = 142464^2 + 173635^2 .

It is not a de Polignac number, because 50445104521 - 2⁷ = 50445104393 is a prime.

It is a super-2 number, since 2×50445104521² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50445104321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1202046 + ... + 1243303.

It is an arithmetic number, because the mean of its divisors is an integer number (4901704075).

Almost surely, 2^50445104521 is an apocalyptic number.

It is an amenable number.

50445104521 is a deficient number, since it is larger than the sum of its proper divisors (8375344379).

50445104521 is a wasteful number, since it uses less digits than its factorization.

50445104521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2445784 (or 2445777 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 31.

Adding to 50445104521 its reverse (12540154405), we get a palindrome (62985258926).

The spelling of 50445104521 in words is "fifty billion, four hundred forty-five million, one hundred four thousand, five hundred twenty-one".