525521952 has 192 divisors, whose sum is σ = 1668522240. Its totient is φ = 160247808.

The previous prime is 525521939. The next prime is 525521987. The reversal of 525521952 is 259125525.

525521952 is a `hidden beast` number, since 52 + 552 + 1 + 9 + 52 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 542973 + ... + 543939.

It is an arithmetic number, because the mean of its divisors is an integer number (8690220).

Almost surely, 2^525521952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525521952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (834261120).

525521952 is an abundant number, since it is smaller than the sum of its proper divisors (1143000288).

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

525521952 is a wasteful number, since it uses less digits than its factorization.

525521952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040 (or 1026 counting only the distinct ones).

The product of its digits is 45000, while the sum is 36.

The square root of 525521952 is about 22924.2655716601. The cubic root of 525521952 is about 806.9815780541.

The spelling of 525521952 in words is "five hundred twenty-five million, five hundred twenty-one thousand, nine hundred fifty-two".