525226405 has 32 divisors (see below), whose sum is σ = 734054400. Its totient is φ = 356731200.

The previous prime is 525226393. The next prime is 525226417. The reversal of 525226405 is 504622525.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (525226393) and next prime (525226417).

It is not a de Polignac number, because 525226405 - 2¹⁹ = 524702117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70656 + ... + 77734.

It is an arithmetic number, because the mean of its divisors is an integer number (22939200).

Almost surely, 2^525226405 is an apocalyptic number.

525226405 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

525226405 is a deficient number, since it is larger than the sum of its proper divisors (208827995).

525226405 is a wasteful number, since it uses less digits than its factorization.

525226405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7185.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 525226405 is about 22917.8185043865. The cubic root of 525226405 is about 806.8302708901.

The spelling of 525226405 in words is "five hundred twenty-five million, two hundred twenty-six thousand, four hundred five".