48642665 has 4 divisors (see below), whose sum is σ = 58371204. Its totient is φ = 38914128.

The previous prime is 48642617. The next prime is 48642673. The reversal of 48642665 is 56624684.

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 24720784 + 23921881 = 4972^2 + 4891^2 .

It is a cyclic number.

It is not a de Polignac number, because 48642665 - 2²⁰ = 47594089 is a prime.

It is a super-2 number, since 2×48642665² = 4732217716604450, which contains 22 as substring.

It is a Duffinian 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, 4864262 + ... + 4864271.

It is an arithmetic number, because the mean of its divisors is an integer number (14592801).

Almost surely, 2^48642665 is an apocalyptic number.

It is an amenable number.

48642665 is a deficient number, since it is larger than the sum of its proper divisors (9728539).

48642665 is an equidigital number, since it uses as much as digits as its factorization.

48642665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9728538.

The product of its digits is 276480, while the sum is 41.

The square root of 48642665 is about 6974.4293673390. The cubic root of 48642665 is about 365.0388774502.

The spelling of 48642665 in words is "forty-eight million, six hundred forty-two thousand, six hundred sixty-five".