49252888521 has 6 divisors (see below), whose sum is σ = 71143061210. Its totient is φ = 32835259008.

The previous prime is 49252888511. The next prime is 49252888537. The reversal of 49252888521 is 12588825294.

49252888521 is a `hidden beast` number, since 4 + 92 + 5 + 28 + 8 + 8 + 521 = 666.

It can be written as a sum of positive squares in only one way, i.e., 38126858121 + 11126030400 = 195261^2 + 105480^2 .

It is not a de Polignac number, because 49252888521 - 2¹³ = 49252880329 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49252888511) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2736271576 + ... + 2736271593.

Almost surely, 2^49252888521 is an apocalyptic number.

It is an amenable number.

49252888521 is a deficient number, since it is larger than the sum of its proper divisors (21890172689).

49252888521 is a wasteful number, since it uses less digits than its factorization.

49252888521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5472543175 (or 5472543172 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 54.

The spelling of 49252888521 in words is "forty-nine billion, two hundred fifty-two million, eight hundred eighty-eight thousand, five hundred twenty-one".