525445494 has 32 divisors (see below), whose sum is σ = 1264231680. Its totient is φ = 142225632.

The previous prime is 525445489. The next prime is 525445499. The reversal of 525445494 is 494544525.

It is an interprime number because it is at equal distance from previous prime (525445489) and next prime (525445499).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525445499) 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, 328429 + ... + 330024.

It is an arithmetic number, because the mean of its divisors is an integer number (39507240).

Almost surely, 2^525445494 is an apocalyptic number.

525445494 is an abundant number, since it is smaller than the sum of its proper divisors (738786186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

525445494 is a wasteful number, since it uses less digits than its factorization.

525445494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658484.

The product of its digits is 576000, while the sum is 42.

The square root of 525445494 is about 22922.5978894191. The cubic root of 525445494 is about 806.9424403360.

The spelling of 525445494 in words is "five hundred twenty-five million, four hundred forty-five thousand, four hundred ninety-four".