49018537 has 4 divisors (see below), whose sum is σ = 51598480. Its totient is φ = 46438596.

The previous prime is 49018517. The next prime is 49018549. The reversal of 49018537 is 73581094.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49018537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49018496 and 49018505.

It is not an unprimeable number, because it can be changed into a prime (49018507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1289943 + ... + 1289980.

It is an arithmetic number, because the mean of its divisors is an integer number (12899620).

Almost surely, 2^49018537 is an apocalyptic number.

It is an amenable number.

49018537 is a deficient number, since it is larger than the sum of its proper divisors (2579943).

49018537 is a wasteful number, since it uses less digits than its factorization.

49018537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2579942.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 49018537 is about 7001.3239462262. The cubic root of 49018537 is about 365.9767097764.

The spelling of 49018537 in words is "forty-nine million, eighteen thousand, five hundred thirty-seven".