1625112012 has 24 divisors (see below), whose sum is σ = 3956795136. Its totient is φ = 518151568.

The previous prime is 1625111987. The next prime is 1625112019. The reversal of 1625112012 is 2102115261.

It is a self number, because there is not a number n which added to its sum of digits gives 1625112012.

It is not an unprimeable number, because it can be changed into a prime (1625112019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2943768 + ... + 2944319.

It is an arithmetic number, because the mean of its divisors is an integer number (164866464).

Almost surely, 2^1625112012 is an apocalyptic number.

1625112012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1625112012 is an abundant number, since it is smaller than the sum of its proper divisors (2331683124).

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

1625112012 is a wasteful number, since it uses less digits than its factorization.

1625112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5888117 (or 5888115 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 1625112012 is about 40312.6780554207. The cubic root of 1625112012 is about 1175.6943563373.

Adding to 1625112012 its reverse (2102115261), we get a palindrome (3727227273).

The spelling of 1625112012 in words is "one billion, six hundred twenty-five million, one hundred twelve thousand, twelve".