525063400 has 24 divisors (see below), whose sum is σ = 1220772870. Its totient is φ = 210025280.

The previous prime is 525063359. The next prime is 525063431. The reversal of 525063400 is 4360525.

It can be written as a sum of positive squares in 3 ways, for example, as 267845956 + 257217444 = 16366^2 + 16038^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

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 5 ways as a sum of consecutive naturals, for example, 1312459 + ... + 1312858.

Almost surely, 2^525063400 is an apocalyptic number.

525063400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

525063400 is an abundant number, since it is smaller than the sum of its proper divisors (695709470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

525063400 is a wasteful number, since it uses less digits than its factorization.

525063400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2625333 (or 2625324 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 525063400 is about 22914.2619344373. The cubic root of 525063400 is about 806.7467951579.

The spelling of 525063400 in words is "five hundred twenty-five million, sixty-three thousand, four hundred".