525511401 has 16 divisors (see below), whose sum is σ = 715906560. Its totient is φ = 342789120.

The previous prime is 525511387. The next prime is 525511403. The reversal of 525511401 is 104115525.

It is not a de Polignac number, because 525511401 - 2⁵ = 525511369 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (525511403) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 27880 + ... + 42758.

It is an arithmetic number, because the mean of its divisors is an integer number (44744160).

Almost surely, 2^525511401 is an apocalyptic number.

It is an amenable number.

525511401 is a deficient number, since it is larger than the sum of its proper divisors (190395159).

525511401 is a wasteful number, since it uses less digits than its factorization.

525511401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15136.

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 525511401 is about 22924.0354431762. The cubic root of 525511401 is about 806.9761773792.

Adding to 525511401 its reverse (104115525), we get a palindrome (629626926).

The spelling of 525511401 in words is "five hundred twenty-five million, five hundred eleven thousand, four hundred one".