49755317481 has 9 divisors (see below), whose sum is σ = 71869758519. Its totient is φ = 33169765536.

The previous prime is 49755317473. The next prime is 49755317497. The reversal of 49755317481 is 18471355794.

The square root of 49755317481 is 223059.

It is a perfect power (a square), and thus also a powerful number.

49755317481 is a `hidden beast` number, since 4 + 9 + 7 + 553 + 1 + 7 + 4 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 36846722025 + 12908595456 = 191955^2 + 113616^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 49755317481 - 2³ = 49755317473 is a prime.

It is a super-2 number, since 2×49755317481² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49755315481) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 632001 + ... + 706353.

Almost surely, 2^49755317481 is an apocalyptic number.

49755317481 is the 223059-th square number.

49755317481 is the 111530-th centered octagonal number.

It is an amenable number.

49755317481 is a deficient number, since it is larger than the sum of its proper divisors (22114441038).

49755317481 is an frugal number, since it uses more digits than its factorization.

49755317481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148712 (or 74356 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 54.

It can be divided in two parts, 49755 and 317481, that added together give a square (367236 = 606²).

The spelling of 49755317481 in words is "forty-nine billion, seven hundred fifty-five million, three hundred seventeen thousand, four hundred eighty-one".