50255551 has 16 divisors (see below), whose sum is σ = 54374400. Its totient is φ = 46303488.

The previous prime is 50255539. The next prime is 50255563. The reversal of 50255551 is 15555205.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (50255539) and next prime (50255563).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50255551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50255531) 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, 142191 + ... + 142543.

It is an arithmetic number, because the mean of its divisors is an integer number (3398400).

Almost surely, 2^50255551 is an apocalyptic number.

50255551 is a deficient number, since it is larger than the sum of its proper divisors (4118849).

50255551 is a wasteful number, since it uses less digits than its factorization.

50255551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558.

The product of its (nonzero) digits is 6250, while the sum is 28.

The square root of 50255551 is about 7089.1149659178. The cubic root of 50255551 is about 369.0297222211.

The spelling of 50255551 in words is "fifty million, two hundred fifty-five thousand, five hundred fifty-one".