1625522416 has 40 divisors (see below), whose sum is σ = 3601492704. Its totient is φ = 696241920.

The previous prime is 1625522387. The next prime is 1625522441. The reversal of 1625522416 is 6142255261.

It is a zygodrome in base 2.

It is a congruent number.

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, 258186 + ... + 264406.

Almost surely, 2^1625522416 is an apocalyptic number.

1625522416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1625522416 is an abundant number, since it is smaller than the sum of its proper divisors (1975970288).

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

1625522416 is a wasteful number, since it uses less digits than its factorization.

1625522416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8569 (or 8563 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 1625522416 is about 40317.7679937766. The cubic root of 1625522416 is about 1175.7933175271.

Adding to 1625522416 its reverse (6142255261), we get a palindrome (7767777677).

The spelling of 1625522416 in words is "one billion, six hundred twenty-five million, five hundred twenty-two thousand, four hundred sixteen".