1525322112 has 32 divisors (see below), whose sum is σ = 4051637880. Its totient is φ = 508440576.

The previous prime is 1525322111. The next prime is 1525322131. The reversal of 1525322112 is 2112235251.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×1525322112² = 4653215090712281088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1525322111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1985713 + ... + 1986480.

Almost surely, 2^1525322112 is an apocalyptic number.

1525322112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1525322112 is an abundant number, since it is smaller than the sum of its proper divisors (2526315768).

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

1525322112 is an equidigital number, since it uses as much as digits as its factorization.

1525322112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3972210 (or 3972198 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 1525322112 is about 39055.3723833226. The cubic root of 1525322112 is about 1151.1197944560.

Adding to 1525322112 its reverse (2112235251), we get a palindrome (3637557363).

The spelling of 1525322112 in words is "one billion, five hundred twenty-five million, three hundred twenty-two thousand, one hundred twelve".