48421515 has 16 divisors (see below), whose sum is σ = 79123968. Its totient is φ = 25274976.

The previous prime is 48421511. The next prime is 48421523. The reversal of 48421515 is 51512484.

It is not a de Polignac number, because 48421515 - 2² = 48421511 is a prime.

It is a super-2 number, since 2×48421515² = 4689286229790450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (48421511) 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, 33637 + ... + 35046.

It is an arithmetic number, because the mean of its divisors is an integer number (4945248).

Almost surely, 2^48421515 is an apocalyptic number.

48421515 is a deficient number, since it is larger than the sum of its proper divisors (30702453).

48421515 is a wasteful number, since it uses less digits than its factorization.

48421515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68738.

The product of its digits is 6400, while the sum is 30.

The square root of 48421515 is about 6958.5569624743. The cubic root of 48421515 is about 364.4848302342.

Adding to 48421515 its reverse (51512484), we get a palindrome (99933999).

The spelling of 48421515 in words is "forty-eight million, four hundred twenty-one thousand, five hundred fifteen".