525552404 has 24 divisors (see below), whose sum is σ = 1004039400. Its totient is φ = 239238144.

The previous prime is 525552359. The next prime is 525552409. The reversal of 525552404 is 404255525.

It can be written as a sum of positive squares in 4 ways, for example, as 110208004 + 415344400 = 10498^2 + 20380^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525552409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65429 + ... + 73020.

It is an arithmetic number, because the mean of its divisors is an integer number (41834975).

Almost surely, 2^525552404 is an apocalyptic number.

It is an amenable number.

525552404 is a deficient number, since it is larger than the sum of its proper divisors (478486996).

525552404 is a wasteful number, since it uses less digits than its factorization.

525552404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138539 (or 138537 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 32.

The square root of 525552404 is about 22924.9297490745. The cubic root of 525552404 is about 806.9971649249.

The spelling of 525552404 in words is "five hundred twenty-five million, five hundred fifty-two thousand, four hundred four".