49687555 has 4 divisors (see below), whose sum is σ = 59625072. Its totient is φ = 39750040.

The previous prime is 49687493. The next prime is 49687591. The reversal of 49687555 is 55578694.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55578694 = 2 ⋅27789347.

It is not a de Polignac number, because 49687555 - 2⁷ = 49687427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49687499 and 49687508.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4968751 + ... + 4968760.

It is an arithmetic number, because the mean of its divisors is an integer number (14906268).

Almost surely, 2^49687555 is an apocalyptic number.

49687555 is a deficient number, since it is larger than the sum of its proper divisors (9937517).

49687555 is an equidigital number, since it uses as much as digits as its factorization.

49687555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9937516.

The product of its digits is 1512000, while the sum is 49.

The square root of 49687555 is about 7048.9399912327. The cubic root of 49687555 is about 367.6341744015.

The spelling of 49687555 in words is "forty-nine million, six hundred eighty-seven thousand, five hundred fifty-five".