49543651 has 4 divisors (see below), whose sum is σ = 50355904. Its totient is φ = 48731400.

The previous prime is 49543649. The next prime is 49543693. The reversal of 49543651 is 15634594.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49543651 - 2¹ = 49543649 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49543651.

It is not an unprimeable number, because it can be changed into a prime (49543601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406035 + ... + 406156.

It is an arithmetic number, because the mean of its divisors is an integer number (12588976).

Almost surely, 2^49543651 is an apocalyptic number.

49543651 is a deficient number, since it is larger than the sum of its proper divisors (812253).

49543651 is an equidigital number, since it uses as much as digits as its factorization.

49543651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812252.

The product of its digits is 64800, while the sum is 37.

The square root of 49543651 is about 7038.7250976295. The cubic root of 49543651 is about 367.2789198934.

The spelling of 49543651 in words is "forty-nine million, five hundred forty-three thousand, six hundred fifty-one".