1625695212 has 12 divisors (see below), whose sum is σ = 3793288856. Its totient is φ = 541898400.

The previous prime is 1625695147. The next prime is 1625695213. The reversal of 1625695212 is 2125965261.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1625695213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67737289 + ... + 67737312.

Almost surely, 2^1625695212 is an apocalyptic number.

1625695212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1625695212 is an abundant number, since it is smaller than the sum of its proper divisors (2167593644).

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

1625695212 is a wasteful number, since it uses less digits than its factorization.

1625695212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135474608 (or 135474606 counting only the distinct ones).

The product of its digits is 64800, while the sum is 39.

The square root of 1625695212 is about 40319.9108629967. The cubic root of 1625695212 is about 1175.8349790428.

The spelling of 1625695212 in words is "one billion, six hundred twenty-five million, six hundred ninety-five thousand, two hundred twelve".