525051400 has 48 divisors (see below), whose sum is σ = 1240785540. Its totient is φ = 206572800.

The previous prime is 525051391. The next prime is 525051403. The reversal of 525051400 is 4150525.

It can be written as a sum of positive squares in 6 ways, for example, as 4 + 525051396 = 2^2 + 22914^2 .

It is not an unprimeable number, because it can be changed into a prime (525051403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9319 + ... + 33718.

Almost surely, 2^525051400 is an apocalyptic number.

525051400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

525051400 is an abundant number, since it is smaller than the sum of its proper divisors (715734140).

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

525051400 is a wasteful number, since it uses less digits than its factorization.

525051400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43114 (or 43105 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 525051400 is about 22914.0000872829. Note that the first 4 decimals coincide. The cubic root of 525051400 is about 806.7406492110.

The spelling of 525051400 in words is "five hundred twenty-five million, fifty-one thousand, four hundred".