1625867088 has 80 divisors (see below), whose sum is σ = 4436382720. Its totient is φ = 511671168.

The previous prime is 1625867083. The next prime is 1625867093. The reversal of 1625867088 is 8807685261.

It is an interprime number because it is at equal distance from previous prime (1625867083) and next prime (1625867093).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1625867088.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1625867083) 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, 277081 + ... + 282887.

It is an arithmetic number, because the mean of its divisors is an integer number (55454784).

Almost surely, 2^1625867088 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 1625867088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2218191360).

1625867088 is an abundant number, since it is smaller than the sum of its proper divisors (2810515632).

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

1625867088 is a wasteful number, since it uses less digits than its factorization.

1625867088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6144 (or 6138 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 51.

The square root of 1625867088 is about 40322.0422101857. The cubic root of 1625867088 is about 1175.8764158160.

The spelling of 1625867088 in words is "one billion, six hundred twenty-five million, eight hundred sixty-seven thousand, eighty-eight".