625451 has 2 divisors, whose sum is σ = 625452. Its totient is φ = 625450.

The previous prime is 625409. The next prime is 625477. The reversal of 625451 is 154526.

625451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 625451 - 2¹⁴ = 609067 is a prime.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 625451.

It is not a weakly prime, because it can be changed into another prime (625351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312725 + 312726.

It is an arithmetic number, because the mean of its divisors is an integer number (312726).

2⁶²⁵⁴⁵¹ is an apocalyptic number.

625451 is a deficient number, since it is larger than the sum of its proper divisors (1).

625451 is an equidigital number, since it uses as much as digits as its factorization.

625451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1200, while the sum is 23.

The square root of 625451 is about 790.8546010488. The cubic root of 625451 is about 85.5193576999.

Adding to 625451 its reverse (154526), we get a palindrome (779977).

The spelling of 625451 in words is "six hundred twenty-five thousand, four hundred fifty-one".