1625016406 has 16 divisors (see below), whose sum is σ = 2625699888. Its totient is φ = 749815200.

The previous prime is 1625016403. The next prime is 1625016443. The reversal of 1625016406 is 6046105261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1625016403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169296 + ... + 178636.

It is an arithmetic number, because the mean of its divisors is an integer number (164106243).

Almost surely, 2^1625016406 is an apocalyptic number.

1625016406 is a deficient number, since it is larger than the sum of its proper divisors (1000683482).

1625016406 is a wasteful number, since it uses less digits than its factorization.

1625016406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16047.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1625016406 is about 40311.4922323647. The cubic root of 1625016406 is about 1175.6713003596.

The spelling of 1625016406 in words is "one billion, six hundred twenty-five million, sixteen thousand, four hundred six".