528581001 has 16 divisors (see below), whose sum is σ = 779503424. Its totient is φ = 316488384.

The previous prime is 528580973. The next prime is 528581029. The reversal of 528581001 is 100185825.

It is an interprime number because it is at equal distance from previous prime (528580973) and next prime (528581029).

It is not a de Polignac number, because 528581001 - 2⁶ = 528580937 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 528581001.

It is not an unprimeable number, because it can be changed into a prime (528581041) 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, 181711 + ... + 184596.

It is an arithmetic number, because the mean of its divisors is an integer number (48718964).

Almost surely, 2^528581001 is an apocalyptic number.

It is an amenable number.

528581001 is a deficient number, since it is larger than the sum of its proper divisors (250922423).

528581001 is a wasteful number, since it uses less digits than its factorization.

528581001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366360.

The product of its (nonzero) digits is 3200, while the sum is 30.

The square root of 528581001 is about 22990.8895217214. The cubic root of 528581001 is about 808.5443556145.

The spelling of 528581001 in words is "five hundred twenty-eight million, five hundred eighty-one thousand, one".