525421782000 has 480 divisors, whose sum is σ = 1986527050560. Its totient is φ = 132733209600.

The previous prime is 525421781977. The next prime is 525421782013. The reversal of 525421782000 is 287124525.

It is a happy number.

525421782000 is a `hidden beast` number, since 5 + 25 + 421 + 7 + 8 + 200 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 19480524 + ... + 19507476.

It is an arithmetic number, because the mean of its divisors is an integer number (4138598022).

Almost surely, 2^525421782000 is an apocalyptic number.

525421782000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525421782000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (993263525280).

525421782000 is an abundant number, since it is smaller than the sum of its proper divisors (1461105268560).

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

525421782000 is a wasteful number, since it uses less digits than its factorization.

525421782000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27023 (or 26982 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The spelling of 525421782000 in words is "five hundred twenty-five billion, four hundred twenty-one million, seven hundred eighty-two thousand".