48165621 has 16 divisors (see below), whose sum is σ = 73578624. Its totient is φ = 27454464.

The previous prime is 48165617. The next prime is 48165629. The reversal of 48165621 is 12656184.

It is not a de Polignac number, because 48165621 - 2² = 48165617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48165629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6445 + ... + 11741.

It is an arithmetic number, because the mean of its divisors is an integer number (4598664).

Almost surely, 2^48165621 is an apocalyptic number.

It is an amenable number.

48165621 is a deficient number, since it is larger than the sum of its proper divisors (25413003).

48165621 is a wasteful number, since it uses less digits than its factorization.

48165621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5740.

The product of its digits is 11520, while the sum is 33.

The square root of 48165621 is about 6940.1456036599. The cubic root of 48165621 is about 363.8416294713.

The spelling of 48165621 in words is "forty-eight million, one hundred sixty-five thousand, six hundred twenty-one".