49131761 has 12 divisors (see below), whose sum is σ = 57748068. Its totient is φ = 41674752.

The previous prime is 49131697. The next prime is 49131763. The reversal of 49131761 is 16713194.

It can be written as a sum of positive squares in 2 ways, for example, as 10144225 + 38987536 = 3185^2 + 6244^2 .

It is not a de Polignac number, because 49131761 - 2⁶ = 49131697 is a prime.

It is a super-2 number, since 2×49131761² = 4827859877922242, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49131763) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 416 + ... + 9921.

It is an arithmetic number, because the mean of its divisors is an integer number (4812339).

Almost surely, 2^49131761 is an apocalyptic number.

It is an amenable number.

49131761 is a deficient number, since it is larger than the sum of its proper divisors (8616307).

49131761 is a wasteful number, since it uses less digits than its factorization.

49131761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10448 (or 10441 counting only the distinct ones).

The product of its digits is 4536, while the sum is 32.

The square root of 49131761 is about 7009.4051816113. The cubic root of 49131761 is about 366.2582732156.

The spelling of 49131761 in words is "forty-nine million, one hundred thirty-one thousand, seven hundred sixty-one".