625454 has 4 divisors (see below), whose sum is σ = 938184. Its totient is φ = 312726.

The previous prime is 625451. The next prime is 625477. The reversal of 625454 is 454526.

625454 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 super-2 number, since 2×625454² = 782385412232, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 625454.

It is not an unprimeable number, because it can be changed into a prime (625451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156362 + ... + 156365.

It is an arithmetic number, because the mean of its divisors is an integer number (234546).

2⁶²⁵⁴⁵⁴ is an apocalyptic number.

625454 is a deficient number, since it is larger than the sum of its proper divisors (312730).

625454 is a wasteful number, since it uses less digits than its factorization.

625454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312729.

The product of its digits is 4800, while the sum is 26.

The square root of 625454 is about 790.8564977289. The cubic root of 625454 is about 85.5194944320.

The spelling of 625454 in words is "six hundred twenty-five thousand, four hundred fifty-four".