48777613 has 4 divisors (see below), whose sum is σ = 49577308. Its totient is φ = 47977920.

The previous prime is 48777571. The next prime is 48777629. The reversal of 48777613 is 31677784.

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

It can be written as a sum of positive squares in 2 ways, for example, as 25371369 + 23406244 = 5037^2 + 4838^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48777613 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 48777613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48777643) 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, 399756 + ... + 399877.

It is an arithmetic number, because the mean of its divisors is an integer number (12394327).

Almost surely, 2^48777613 is an apocalyptic number.

It is an amenable number.

48777613 is a deficient number, since it is larger than the sum of its proper divisors (799695).

48777613 is an equidigital number, since it uses as much as digits as its factorization.

48777613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799694.

The product of its digits is 197568, while the sum is 43.

The square root of 48777613 is about 6984.0971499543. The cubic root of 48777613 is about 365.3761381779.

The spelling of 48777613 in words is "forty-eight million, seven hundred seventy-seven thousand, six hundred thirteen".