49581577 has 2 divisors, whose sum is σ = 49581578. Its totient is φ = 49581576.

The previous prime is 49581563. The next prime is 49581599. The reversal of 49581577 is 77518594.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28933641 + 20647936 = 5379^2 + 4544^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49581577 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49581377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24790788 + 24790789.

It is an arithmetic number, because the mean of its divisors is an integer number (24790789).

Almost surely, 2^49581577 is an apocalyptic number.

It is an amenable number.

49581577 is a deficient number, since it is larger than the sum of its proper divisors (1).

49581577 is an equidigital number, since it uses as much as digits as its factorization.

49581577 is an evil number, because the sum of its binary digits is even.

The product of its digits is 352800, while the sum is 46.

The square root of 49581577 is about 7041.4186780790. The cubic root of 49581577 is about 367.3726141555.

The spelling of 49581577 in words is "forty-nine million, five hundred eighty-one thousand, five hundred seventy-seven".