1625275617 has 32 divisors (see below), whose sum is σ = 2497142784. Its totient is φ = 921067200.

The previous prime is 1625275607. The next prime is 1625275627. The reversal of 1625275617 is 7165725261.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1625275607) and next prime (1625275627).

It is not a de Polignac number, because 1625275617 - 2¹⁹ = 1624751329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1625275607) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1575892 + ... + 1576922.

It is an arithmetic number, because the mean of its divisors is an integer number (78035712).

Almost surely, 2^1625275617 is an apocalyptic number.

It is an amenable number.

1625275617 is a deficient number, since it is larger than the sum of its proper divisors (871867167).

1625275617 is a wasteful number, since it uses less digits than its factorization.

1625275617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1589.

The product of its digits is 176400, while the sum is 42.

The square root of 1625275617 is about 40314.7072046914. The cubic root of 1625275617 is about 1175.7338085964.

The spelling of 1625275617 in words is "one billion, six hundred twenty-five million, two hundred seventy-five thousand, six hundred seventeen".