382525021 has 8 divisors (see below), whose sum is σ = 384276600. Its totient is φ = 380778240.

The previous prime is 382524991. The next prime is 382525049. The reversal of 382525021 is 120525283.

It can be written as a sum of positive squares in 4 ways, for example, as 123765625 + 258759396 = 11125^2 + 16086^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 382525021 - 2¹³ = 382516829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (382525061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310635 + ... + 311863.

It is an arithmetic number, because the mean of its divisors is an integer number (48034575).

Almost surely, 2^382525021 is an apocalyptic number.

It is an amenable number.

382525021 is a deficient number, since it is larger than the sum of its proper divisors (1751579).

382525021 is a wasteful number, since it uses less digits than its factorization.

382525021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2399.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 382525021 is about 19558.2468795135. The cubic root of 382525021 is about 725.9164129293.

The spelling of 382525021 in words is "three hundred eighty-two million, five hundred twenty-five thousand, twenty-one".