1625213031 has 16 divisors (see below), whose sum is σ = 2352021504. Its totient is φ = 992253024.

The previous prime is 1625213011. The next prime is 1625213071. The reversal of 1625213031 is 1303125261.

1625213031 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1625213031 - 2²⁵ = 1591658599 is a prime.

It is a super-2 number, since 2×1625213031² = 5282634792264413922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1625212992 and 1625213010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1625213011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159111 + ... + 169016.

It is an arithmetic number, because the mean of its divisors is an integer number (147001344).

Almost surely, 2^1625213031 is an apocalyptic number.

1625213031 is a deficient number, since it is larger than the sum of its proper divisors (726808473).

1625213031 is a wasteful number, since it uses less digits than its factorization.

1625213031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328270.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1625213031 is about 40313.9309792533. The cubic root of 1625213031 is about 1175.7187167109.

Adding to 1625213031 its reverse (1303125261), we get a palindrome (2928338292).

The spelling of 1625213031 in words is "one billion, six hundred twenty-five million, two hundred thirteen thousand, thirty-one".