48649578 has 16 divisors (see below), whose sum is σ = 98245056. Its totient is φ = 16058880.

The previous prime is 48649567. The next prime is 48649589. The reversal of 48649578 is 87594684.

It is an interprime number because it is at equal distance from previous prime (48649567) and next prime (48649589).

It is a self number, because there is not a number n which added to its sum of digits gives 48649578.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38743 + ... + 39978.

It is an arithmetic number, because the mean of its divisors is an integer number (6140316).

Almost surely, 2^48649578 is an apocalyptic number.

48649578 is an abundant number, since it is smaller than the sum of its proper divisors (49595478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

48649578 is a wasteful number, since it uses less digits than its factorization.

48649578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78829.

The product of its digits is 1935360, while the sum is 51.

The square root of 48649578 is about 6974.9249458328. The cubic root of 48649578 is about 365.0561695004.

The spelling of 48649578 in words is "forty-eight million, six hundred forty-nine thousand, five hundred seventy-eight".