49518765 has 24 divisors (see below), whose sum is σ = 88155288. Its totient is φ = 25695360.

The previous prime is 49518727. The next prime is 49518779. The reversal of 49518765 is 56781594.

It can be written as a sum of positive squares in 4 ways, for example, as 24147396 + 25371369 = 4914^2 + 5037^2 .

It is not a de Polignac number, because 49518765 - 2¹² = 49514669 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 49518765.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13206 + ... + 16535.

It is an arithmetic number, because the mean of its divisors is an integer number (3673137).

Almost surely, 2^49518765 is an apocalyptic number.

49518765 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49518765 is a deficient number, since it is larger than the sum of its proper divisors (38636523).

49518765 is a wasteful number, since it uses less digits than its factorization.

49518765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29789 (or 29786 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 49518765 is about 7036.9570838538. The cubic root of 49518765 is about 367.2174143065.

The spelling of 49518765 in words is "forty-nine million, five hundred eighteen thousand, seven hundred sixty-five".