49502681 has 4 divisors (see below), whose sum is σ = 51209700. Its totient is φ = 47795664.

The previous prime is 49502669. The next prime is 49502729. The reversal of 49502681 is 18620594.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18620594 = 2 ⋅9310297.

It can be written as a sum of positive squares in 2 ways, for example, as 20976400 + 28526281 = 4580^2 + 5341^2 .

It is a cyclic number.

It is not a de Polignac number, because 49502681 - 2¹⁰ = 49501657 is a prime.

It is a super-2 number, since 2×49502681² = 4901030852375522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49502081) 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, 853466 + ... + 853523.

It is an arithmetic number, because the mean of its divisors is an integer number (12802425).

Almost surely, 2^49502681 is an apocalyptic number.

It is an amenable number.

49502681 is a deficient number, since it is larger than the sum of its proper divisors (1707019).

49502681 is a wasteful number, since it uses less digits than its factorization.

49502681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1707018.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 49502681 is about 7035.8141675289. The cubic root of 49502681 is about 367.1776518415.

It can be divided in two parts, 49 and 502681, that multiplied together give a square (24631369 = 4963²).

The spelling of 49502681 in words is "forty-nine million, five hundred two thousand, six hundred eighty-one".