50531551 has 4 divisors (see below), whose sum is σ = 57750352. Its totient is φ = 43312752.

The previous prime is 50531539. The next prime is 50531563. The reversal of 50531551 is 15513505.

50531551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (50531539) and next prime (50531563).

It is not a de Polignac number, because 50531551 - 2⁷ = 50531423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50531501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3609390 + ... + 3609403.

It is an arithmetic number, because the mean of its divisors is an integer number (14437588).

Almost surely, 2^50531551 is an apocalyptic number.

50531551 is a deficient number, since it is larger than the sum of its proper divisors (7218801).

50531551 is an equidigital number, since it uses as much as digits as its factorization.

50531551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7218800.

The product of its (nonzero) digits is 1875, while the sum is 25.

The square root of 50531551 is about 7108.5547757614. The cubic root of 50531551 is about 369.7040511463.

The spelling of 50531551 in words is "fifty million, five hundred thirty-one thousand, five hundred fifty-one".