49555779 has 16 divisors (see below), whose sum is σ = 81322752. Its totient is φ = 26139168.

The previous prime is 49555769. The next prime is 49555789. The reversal of 49555779 is 97755594.

It is an interprime number because it is at equal distance from previous prime (49555769) and next prime (49555789).

It is not a de Polignac number, because 49555779 - 2¹⁷ = 49424707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49555739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90489 + ... + 91034.

It is an arithmetic number, because the mean of its divisors is an integer number (5082672).

Almost surely, 2^49555779 is an apocalyptic number.

49555779 is a deficient number, since it is larger than the sum of its proper divisors (31766973).

49555779 is a wasteful number, since it uses less digits than its factorization.

49555779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181546.

The product of its digits is 1984500, while the sum is 51.

The square root of 49555779 is about 7039.5865645647. The cubic root of 49555779 is about 367.3088867020.

The spelling of 49555779 in words is "forty-nine million, five hundred fifty-five thousand, seven hundred seventy-nine".