1525232028 has 48 divisors (see below), whose sum is σ = 3733180416. Its totient is φ = 483743040.

The previous prime is 1525231969. The next prime is 1525232029. The reversal of 1525232028 is 8202325251.

It is a junction number, because it is equal to n+sod(n) for n = 1525231986 and 1525232004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1525232029) 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, 38250 + ... + 67182.

It is an arithmetic number, because the mean of its divisors is an integer number (77774592).

Almost surely, 2^1525232028 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 1525232028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1866590208).

1525232028 is an abundant number, since it is smaller than the sum of its proper divisors (2207948388).

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

1525232028 is a wasteful number, since it uses less digits than its factorization.

1525232028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29154 (or 29152 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 1525232028 is about 39054.2190806576. The cubic root of 1525232028 is about 1151.0971326815.

Adding to 1525232028 its reverse (8202325251), we get a palindrome (9727557279).

The spelling of 1525232028 in words is "one billion, five hundred twenty-five million, two hundred thirty-two thousand, twenty-eight".