1625133984 has 48 divisors (see below), whose sum is σ = 4270589568. Its totient is φ = 541125632.

The previous prime is 1625133971. The next prime is 1625133997. The reversal of 1625133984 is 4893315261.

It is an interprime number because it is at equal distance from previous prime (1625133971) and next prime (1625133997).

It is a tau number, because it is divible by the number of its divisors (48).

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, 85129 + ... + 102455.

It is an arithmetic number, because the mean of its divisors is an integer number (88970616).

Almost surely, 2^1625133984 is an apocalyptic number.

It is an amenable number.

1625133984 is an abundant number, since it is smaller than the sum of its proper divisors (2645455584).

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

1625133984 is a wasteful number, since it uses less digits than its factorization.

1625133984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18317 (or 18309 counting only the distinct ones).

The product of its digits is 155520, while the sum is 42.

The square root of 1625133984 is about 40312.9505742261. The cubic root of 1625133984 is about 1175.6996548931.

The spelling of 1625133984 in words is "one billion, six hundred twenty-five million, one hundred thirty-three thousand, nine hundred eighty-four".