50406551 has 16 divisors (see below), whose sum is σ = 55792800. Its totient is φ = 45252480.

The previous prime is 50406533. The next prime is 50406571. The reversal of 50406551 is 15560405.

It is a de Polignac number, because none of the positive numbers 2^k-50406551 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50406551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50406511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102416 + ... + 102906.

It is an arithmetic number, because the mean of its divisors is an integer number (3487050).

Almost surely, 2^50406551 is an apocalyptic number.

50406551 is a deficient number, since it is larger than the sum of its proper divisors (5386249).

50406551 is a wasteful number, since it uses less digits than its factorization.

50406551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 50406551 is about 7099.7571085214. The cubic root of 50406551 is about 369.3989535477.

Adding to 50406551 its reverse (15560405), we get a palindrome (65966956).

The spelling of 50406551 in words is "fifty million, four hundred six thousand, five hundred fifty-one".