525420406 has 16 divisors (see below), whose sum is σ = 901029024. Its totient is φ = 225103104.

The previous prime is 525420403. The next prime is 525420409. The reversal of 525420406 is 604024525.

It is an interprime number because it is at equal distance from previous prime (525420403) and next prime (525420409).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525420403) 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 7 ways as a sum of consecutive naturals, for example, 58726 + ... + 67078.

It is an arithmetic number, because the mean of its divisors is an integer number (56314314).

Almost surely, 2^525420406 is an apocalyptic number.

525420406 is a deficient number, since it is larger than the sum of its proper divisors (375608618).

525420406 is a wasteful number, since it uses less digits than its factorization.

525420406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12855.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 525420406 is about 22922.0506499746. The cubic root of 525420406 is about 806.9295973330.

The spelling of 525420406 in words is "five hundred twenty-five million, four hundred twenty thousand, four hundred six".