48565815 has 16 divisors (see below), whose sum is σ = 78275808. Its totient is φ = 25711616.

The previous prime is 48565813. The next prime is 48565823. The reversal of 48565815 is 51856584.

It is a cyclic number.

It is not a de Polignac number, because 48565815 - 2¹ = 48565813 is a prime.

It is a super-2 number, since 2×48565815² = 4717276773228450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48565813) 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, 9762 + ... + 13871.

It is an arithmetic number, because the mean of its divisors is an integer number (4892238).

Almost surely, 2^48565815 is an apocalyptic number.

48565815 is a deficient number, since it is larger than the sum of its proper divisors (29709993).

48565815 is a wasteful number, since it uses less digits than its factorization.

48565815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23778.

The product of its digits is 192000, while the sum is 42.

The square root of 48565815 is about 6968.9177782494. The cubic root of 48565815 is about 364.8465358479.

The spelling of 48565815 in words is "forty-eight million, five hundred sixty-five thousand, eight hundred fifteen".