49531173136 has 15 divisors (see below), whose sum is σ = 95968372791. Its totient is φ = 24765141456.

The previous prime is 49531173119. The next prime is 49531173137. The reversal of 49531173136 is 63137113594.

The square root of 49531173136 is 222556.

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

It is a super-2 number, since 2×49531173136² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49531173092 and 49531173101.

It is not an unprimeable number, because it can be changed into a prime (49531173137) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 862405 + ... + 918043.

Almost surely, 2^49531173136 is an apocalyptic number.

49531173136 is the 222556-th square number.

It is an amenable number.

49531173136 is a deficient number, since it is larger than the sum of its proper divisors (46437199655).

49531173136 is an frugal number, since it uses more digits than its factorization.

49531173136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111286 (or 55641 counting only the distinct ones).

The product of its digits is 204120, while the sum is 43.

The spelling of 49531173136 in words is "forty-nine billion, five hundred thirty-one million, one hundred seventy-three thousand, one hundred thirty-six".