528749125 has 8 divisors (see below), whose sum is σ = 659879064. Its totient is φ = 422999200.

The previous prime is 528749101. The next prime is 528749149. The reversal of 528749125 is 521947825.

It is an interprime number because it is at equal distance from previous prime (528749101) and next prime (528749149).

It can be written as a sum of positive squares in 4 ways, for example, as 125462401 + 403286724 = 11201^2 + 20082^2 .

It is not a de Polignac number, because 528749125 - 2¹⁷ = 528618053 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2114872 + ... + 2115121.

It is an arithmetic number, because the mean of its divisors is an integer number (82484883).

Almost surely, 2^528749125 is an apocalyptic number.

It is an amenable number.

528749125 is a deficient number, since it is larger than the sum of its proper divisors (131129939).

528749125 is an equidigital number, since it uses as much as digits as its factorization.

528749125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4230008 (or 4229998 counting only the distinct ones).

The product of its digits is 201600, while the sum is 43.

The square root of 528749125 is about 22994.5455488905. The cubic root of 528749125 is about 808.6300701983.

The spelling of 528749125 in words is "five hundred twenty-eight million, seven hundred forty-nine thousand, one hundred twenty-five".