652520401 has 16 divisors (see below), whose sum is σ = 783216000. Its totient is φ = 537055488.

The previous prime is 652520359. The next prime is 652520413. The reversal of 652520401 is 104025256.

It is a cyclic number.

It is not a de Polignac number, because 652520401 - 2¹⁷ = 652389329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (652520431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73501 + ... + 81898.

It is an arithmetic number, because the mean of its divisors is an integer number (48951000).

Almost surely, 2^652520401 is an apocalyptic number.

It is an amenable number.

652520401 is a deficient number, since it is larger than the sum of its proper divisors (130695599).

652520401 is a wasteful number, since it uses less digits than its factorization.

652520401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155448.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 652520401 is about 25544.4788750916. The cubic root of 652520401 is about 867.3572869128.

Adding to 652520401 its reverse (104025256), we get a palindrome (756545657).

The spelling of 652520401 in words is "six hundred fifty-two million, five hundred twenty thousand, four hundred one".