2478258025 has 6 divisors (see below), whose sum is σ = 3073039982. Its totient is φ = 1982606400.

The previous prime is 2478258023. The next prime is 2478258049. The reversal of 2478258025 is 5208528742.

It can be written as a sum of positive squares in 3 ways, for example, as 277522281 + 2200735744 = 16659^2 + 46912^2 .

It is not a de Polignac number, because 2478258025 - 2¹ = 2478258023 is a prime.

It is a super-2 number, since 2×2478258025² = 12283525676953801250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2478258023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49565136 + ... + 49565185.

Almost surely, 2^2478258025 is an apocalyptic number.

2478258025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2478258025 is a deficient number, since it is larger than the sum of its proper divisors (594781957).

2478258025 is an equidigital number, since it uses as much as digits as its factorization.

2478258025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99130331 (or 99130326 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 43.

The square root of 2478258025 is about 49782.1054697368. The cubic root of 2478258025 is about 1353.2628938332.

The spelling of 2478258025 in words is "two billion, four hundred seventy-eight million, two hundred fifty-eight thousand, twenty-five".