525405375 has 48 divisors (see below), whose sum is σ = 1033257888. Its totient is φ = 254736000.

The previous prime is 525405373. The next prime is 525405401. The reversal of 525405375 is 573504525.

It is not a de Polignac number, because 525405375 - 2¹ = 525405373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525405373) 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 47 ways as a sum of consecutive naturals, for example, 8854 + ... + 33603.

It is an arithmetic number, because the mean of its divisors is an integer number (21526206).

Almost surely, 2^525405375 is an apocalyptic number.

525405375 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

525405375 is a deficient number, since it is larger than the sum of its proper divisors (507852513).

525405375 is a wasteful number, since it uses less digits than its factorization.

525405375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42489 (or 42476 counting only the distinct ones).

The product of its (nonzero) digits is 105000, while the sum is 36.

The square root of 525405375 is about 22921.7227755682. The cubic root of 525405375 is about 806.9219024952.

The spelling of 525405375 in words is "five hundred twenty-five million, four hundred five thousand, three hundred seventy-five".