48311645 has 4 divisors (see below), whose sum is σ = 57973980. Its totient is φ = 38649312.

The previous prime is 48311639. The next prime is 48311663. The reversal of 48311645 is 54611384.

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 23020804 + 25290841 = 4798^2 + 5029^2 .

It is a cyclic number.

It is not a de Polignac number, because 48311645 - 2¹⁰ = 48310621 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4831160 + ... + 4831169.

It is an arithmetic number, because the mean of its divisors is an integer number (14493495).

Almost surely, 2^48311645 is an apocalyptic number.

It is an amenable number.

48311645 is a deficient number, since it is larger than the sum of its proper divisors (9662335).

48311645 is an equidigital number, since it uses as much as digits as its factorization.

48311645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9662334.

The product of its digits is 11520, while the sum is 32.

The square root of 48311645 is about 6950.6578825317. The cubic root of 48311645 is about 364.2089454678.

The spelling of 48311645 in words is "forty-eight million, three hundred eleven thousand, six hundred forty-five".