1625849580 has 48 divisors (see below), whose sum is σ = 4560645600. Its totient is φ = 432772608.

The previous prime is 1625849579. The next prime is 1625849581. The reversal of 1625849580 is 859485261.

It is an interprime number because it is at equal distance from previous prime (1625849579) and next prime (1625849581).

It is not an unprimeable number, because it can be changed into a prime (1625849581) 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 15 ways as a sum of consecutive naturals, for example, 9096 + ... + 57744.

It is an arithmetic number, because the mean of its divisors is an integer number (95013450).

Almost surely, 2^1625849580 is an apocalyptic number.

1625849580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1625849580 is an abundant number, since it is smaller than the sum of its proper divisors (2934796020).

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

1625849580 is a wasteful number, since it uses less digits than its factorization.

1625849580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49218 (or 49216 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 48.

The square root of 1625849580 is about 40321.8251075023. The cubic root of 1625849580 is about 1175.8721950285.

The spelling of 1625849580 in words is "one billion, six hundred twenty-five million, eight hundred forty-nine thousand, five hundred eighty".