48678529 has 3 divisors (see below), whose sum is σ = 48685507. Its totient is φ = 48671552.

The previous prime is 48678491. The next prime is 48678533. The reversal of 48678529 is 92587684.

The square root of 48678529 is 6977.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 9641025 + 39037504 = 3105^2 + 6248^2 .

It is not a de Polignac number, because 48678529 - 2¹⁵ = 48645761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48688529) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3489 + ... + 10465.

Almost surely, 2^48678529 is an apocalyptic number.

48678529 is the 6977-th square number.

48678529 is the 3489-th centered octagonal number.

It is an amenable number.

48678529 is a deficient number, since it is larger than the sum of its proper divisors (6978).

48678529 is an frugal number, since it uses more digits than its factorization.

48678529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13954 (or 6977 counting only the distinct ones).

The product of its digits is 967680, while the sum is 49.

The cubic root of 48678529 is about 365.1285692062.

Multiplying 48678529 by its sum of digits (49), we get a square (2385247921 = 48839²).

The spelling of 48678529 in words is "forty-eight million, six hundred seventy-eight thousand, five hundred twenty-nine".