1625562049 has 8 divisors (see below), whose sum is σ = 1733568480. Its totient is φ = 1518931776.

The previous prime is 1625562031. The next prime is 1625562091. The reversal of 1625562049 is 9402655261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1625562049 - 2⁹ = 1625561537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1625566049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341599 + ... + 346324.

It is an arithmetic number, because the mean of its divisors is an integer number (216696060).

Almost surely, 2^1625562049 is an apocalyptic number.

It is an amenable number.

1625562049 is a deficient number, since it is larger than the sum of its proper divisors (108006431).

1625562049 is a wasteful number, since it uses less digits than its factorization.

1625562049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688079.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 1625562049 is about 40318.2594986440. The cubic root of 1625562049 is about 1175.8028733961.

The spelling of 1625562049 in words is "one billion, six hundred twenty-five million, five hundred sixty-two thousand, forty-nine".