49163777 has 4 divisors (see below), whose sum is σ = 52945620. Its totient is φ = 45381936.

The previous prime is 49163767. The next prime is 49163789. The reversal of 49163777 is 77736194.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77736194 = 2 ⋅38868097.

It can be written as a sum of positive squares in 2 ways, for example, as 14070001 + 35093776 = 3751^2 + 5924^2 .

It is a cyclic number.

It is not a de Polignac number, because 49163777 - 2²² = 44969473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49163707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1890902 + ... + 1890927.

It is an arithmetic number, because the mean of its divisors is an integer number (13236405).

Almost surely, 2^49163777 is an apocalyptic number.

It is an amenable number.

49163777 is a deficient number, since it is larger than the sum of its proper divisors (3781843).

49163777 is a wasteful number, since it uses less digits than its factorization.

49163777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3781842.

The product of its digits is 222264, while the sum is 44.

The square root of 49163777 is about 7011.6885983335. The cubic root of 49163777 is about 366.3378115733.

The spelling of 49163777 in words is "forty-nine million, one hundred sixty-three thousand, seven hundred seventy-seven".