49656431879825 has 12 divisors (see below), whose sum is σ = 61643866563468. Its totient is φ = 39680054515200.

The previous prime is 49656431879773. The next prime is 49656431879837. The reversal of 49656431879825 is 52897813465694.

It is a Cunningham number, because it is equal to 7046732²+1.

It can be written as a sum of positive squares in 6 ways, for example, as 3893060471056 + 45763371408769 = 1973084^2 + 6764863^2 .

It is not a de Polignac number, because 49656431879825 - 2²⁸ = 49656163444369 is a prime.

It is a super-2 number, since 2×49656431879825² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1127252252 + ... + 1127296301.

It is an arithmetic number, because the mean of its divisors is an integer number (5136988880289).

Almost surely, 2^{49656431879825} is an apocalyptic number.

It is an amenable number.

49656431879825 is a deficient number, since it is larger than the sum of its proper divisors (11987434683643).

49656431879825 is a wasteful number, since it uses less digits than its factorization.

49656431879825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2254549444 (or 2254549439 counting only the distinct ones).

The product of its digits is 3135283200, while the sum is 77.

The spelling of 49656431879825 in words is "forty-nine trillion, six hundred fifty-six billion, four hundred thirty-one million, eight hundred seventy-nine thousand, eight hundred twenty-five".