1625612063 has 4 divisors (see below), whose sum is σ = 1721236320. Its totient is φ = 1529987808.

The previous prime is 1625612059. The next prime is 1625612071. The reversal of 1625612063 is 3602165261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3602165261 = 853 ⋅4222937.

It is a cyclic number.

It is not a de Polignac number, because 1625612063 - 2² = 1625612059 is a prime.

It is a super-2 number, since 2×1625612063² = 5285229158742231938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1625612003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47812103 + ... + 47812136.

It is an arithmetic number, because the mean of its divisors is an integer number (430309080).

Almost surely, 2^1625612063 is an apocalyptic number.

1625612063 is a deficient number, since it is larger than the sum of its proper divisors (95624257).

1625612063 is an equidigital number, since it uses as much as digits as its factorization.

1625612063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95624256.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 1625612063 is about 40318.8797339410. The cubic root of 1625612063 is about 1175.8149319949.

The spelling of 1625612063 in words is "one billion, six hundred twenty-five million, six hundred twelve thousand, sixty-three".