1625012880 has 40 divisors (see below), whose sum is σ = 5037540672. Its totient is φ = 433336704.

The previous prime is 1625012843. The next prime is 1625012903. The reversal of 1625012880 is 882105261.

It is a tau number, because it is divible by the number of its divisors (40).

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, 3385204 + ... + 3385683.

Almost surely, 2^1625012880 is an apocalyptic number.

1625012880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1625012880 is an abundant number, since it is smaller than the sum of its proper divisors (3412527792).

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

1625012880 is a wasteful number, since it uses less digits than its factorization.

1625012880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6770903 (or 6770897 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 1625012880 is about 40311.4484979143. The cubic root of 1625012880 is about 1175.6704500256.

The spelling of 1625012880 in words is "one billion, six hundred twenty-five million, twelve thousand, eight hundred eighty".