2478436525 has 6 divisors (see below), whose sum is σ = 3073261322. Its totient is φ = 1982749200.

The previous prime is 2478436501. The next prime is 2478436559. The reversal of 2478436525 is 5256348742.

It can be written as a sum of positive squares in 3 ways, for example, as 48636676 + 2429799849 = 6974^2 + 49293^2 .

It is not a de Polignac number, because 2478436525 - 2⁷ = 2478436397 is a prime.

It is a super-2 number, since 2×2478436525² = 12285295216908151250, which contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 49568706 + ... + 49568755.

Almost surely, 2^2478436525 is an apocalyptic number.

2478436525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2478436525 is a deficient number, since it is larger than the sum of its proper divisors (594824797).

2478436525 is an equidigital number, since it uses as much as digits as its factorization.

2478436525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99137471 (or 99137466 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 46.

The square root of 2478436525 is about 49783.8982503379. The cubic root of 2478436525 is about 1353.2953832707.

The spelling of 2478436525 in words is "two billion, four hundred seventy-eight million, four hundred thirty-six thousand, five hundred twenty-five".