49531969 has 2 divisors, whose sum is σ = 49531970. Its totient is φ = 49531968.

The previous prime is 49531967. The next prime is 49531987. The reversal of 49531969 is 96913594.

49531969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47789569 + 1742400 = 6913^2 + 1320^2 .

It is a cyclic number.

It is not a de Polignac number, because 49531969 - 2¹ = 49531967 is a prime.

It is a super-2 number, since 2×49531969² = 4906831906033922, which contains 22 as substring.

Together with 49531967, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (49531967) 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 as a sum of consecutive naturals, namely, 24765984 + 24765985.

It is an arithmetic number, because the mean of its divisors is an integer number (24765985).

Almost surely, 2^49531969 is an apocalyptic number.

It is an amenable number.

49531969 is a deficient number, since it is larger than the sum of its proper divisors (1).

49531969 is an equidigital number, since it uses as much as digits as its factorization.

49531969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 262440, while the sum is 46.

The square root of 49531969 is about 7037.8952109278. The cubic root of 49531969 is about 367.2500504720.

The spelling of 49531969 in words is "forty-nine million, five hundred thirty-one thousand, nine hundred sixty-nine".