2625423406 has 4 divisors (see below), whose sum is σ = 3938135112. Its totient is φ = 1312711702.

The previous prime is 2625423349. The next prime is 2625423461. The reversal of 2625423406 is 6043245262.

2625423406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656355850 + ... + 656355853.

It is an arithmetic number, because the mean of its divisors is an integer number (984533778).

Almost surely, 2^2625423406 is an apocalyptic number.

2625423406 is a deficient number, since it is larger than the sum of its proper divisors (1312711706).

2625423406 is a wasteful number, since it uses less digits than its factorization.

2625423406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312711705.

The product of its (nonzero) digits is 69120, while the sum is 34.

The square root of 2625423406 is about 51238.8856826532. The cubic root of 2625423406 is about 1379.5362521429.

Adding to 2625423406 its reverse (6043245262), we get a palindrome (8668668668).

The spelling of 2625423406 in words is "two billion, six hundred twenty-five million, four hundred twenty-three thousand, four hundred six".