48611813 has 4 divisors (see below), whose sum is σ = 50179968. Its totient is φ = 47043660.

The previous prime is 48611803. The next prime is 48611819. The reversal of 48611813 is 31811684.

It is a happy number.

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 not a de Polignac number, because 48611813 - 2⁶ = 48611749 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 48611813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48611819) 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, 784031 + ... + 784092.

It is an arithmetic number, because the mean of its divisors is an integer number (12544992).

Almost surely, 2^48611813 is an apocalyptic number.

It is an amenable number.

48611813 is a deficient number, since it is larger than the sum of its proper divisors (1568155).

48611813 is a wasteful number, since it uses less digits than its factorization.

48611813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568154.

The product of its digits is 4608, while the sum is 32.

The square root of 48611813 is about 6972.2172226631. The cubic root of 48611813 is about 364.9616848503.

The spelling of 48611813 in words is "forty-eight million, six hundred eleven thousand, eight hundred thirteen".