48978225 has 18 divisors (see below), whose sum is σ = 87725846. Its totient is φ = 26121600.

The previous prime is 48978199. The next prime is 48978239. The reversal of 48978225 is 52287984.

It can be written as a sum of positive squares in 3 ways, for example, as 76176 + 48902049 = 276^2 + 6993^2 .

It is not a de Polignac number, because 48978225 - 2¹⁸ = 48716081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 108616 + ... + 109065.

Almost surely, 2^48978225 is an apocalyptic number.

48978225 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

48978225 is a deficient number, since it is larger than the sum of its proper divisors (38747621).

48978225 is a wasteful number, since it uses less digits than its factorization.

48978225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217697 (or 217689 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 48978225 is about 6998.4444700233. Note that the first 4 decimals coincide. The cubic root of 48978225 is about 365.8763579493.

The spelling of 48978225 in words is "forty-eight million, nine hundred seventy-eight thousand, two hundred twenty-five".