50405553 has 12 divisors (see below), whose sum is σ = 79427088. Its totient is φ = 30548760.

The previous prime is 50405543. The next prime is 50405557. The reversal of 50405553 is 35550405.

It is not a de Polignac number, because 50405553 - 2⁸ = 50405297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50405557) 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, 254475 + ... + 254672.

It is an arithmetic number, because the mean of its divisors is an integer number (6618924).

Almost surely, 2^50405553 is an apocalyptic number.

It is an amenable number.

50405553 is a deficient number, since it is larger than the sum of its proper divisors (29021535).

50405553 is a wasteful number, since it uses less digits than its factorization.

50405553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509164 (or 509161 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

The square root of 50405553 is about 7099.6868240789. The cubic root of 50405553 is about 369.3965156200.

Adding to 50405553 its reverse (35550405), we get a palindrome (85955958).

The spelling of 50405553 in words is "fifty million, four hundred five thousand, five hundred fifty-three".