525628145 has 12 divisors (see below), whose sum is σ = 733734324. Its totient is φ = 360430560.

The previous prime is 525628121. The next prime is 525628211. The reversal of 525628145 is 541826525.

It can be written as a sum of positive squares in 2 ways, for example, as 281299984 + 244328161 = 16772^2 + 15631^2 .

It is not a de Polignac number, because 525628145 - 2⁸ = 525627889 is a prime.

It is a super-2 number, since 2×525628145² = 552569893632282050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 525628099 and 525628108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1072466 + ... + 1072955.

It is an arithmetic number, because the mean of its divisors is an integer number (61144527).

Almost surely, 2^525628145 is an apocalyptic number.

It is an amenable number.

525628145 is a deficient number, since it is larger than the sum of its proper divisors (208106179).

525628145 is a wasteful number, since it uses less digits than its factorization.

525628145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2145440 (or 2145433 counting only the distinct ones).

The product of its digits is 96000, while the sum is 38.

The square root of 525628145 is about 22926.5816248302. The cubic root of 525628145 is about 807.0359303812.

The spelling of 525628145 in words is "five hundred twenty-five million, six hundred twenty-eight thousand, one hundred forty-five".