50061531 has 16 divisors (see below), whose sum is σ = 72077600. Its totient is φ = 30723840.

The previous prime is 50061527. The next prime is 50061551. The reversal of 50061531 is 13516005.

It is a happy number.

It is not a de Polignac number, because 50061531 - 2² = 50061527 is a prime.

It is a super-2 number, since 2×50061531² = 5012313772127922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50061498 and 50061507.

It is not an unprimeable number, because it can be changed into a prime (50061551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14895 + ... + 17943.

It is an arithmetic number, because the mean of its divisors is an integer number (4504850).

Almost surely, 2^50061531 is an apocalyptic number.

50061531 is a deficient number, since it is larger than the sum of its proper divisors (22016069).

50061531 is a wasteful number, since it uses less digits than its factorization.

50061531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3486.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 50061531 is about 7075.4173728480. The cubic root of 50061531 is about 368.5542093435.

Adding to 50061531 its reverse (13516005), we get a palindrome (63577536).

The spelling of 50061531 in words is "fifty million, sixty-one thousand, five hundred thirty-one".