625481 has 4 divisors (see below), whose sum is σ = 662292. Its totient is φ = 588672.

The previous prime is 625477. The next prime is 625483. The reversal of 625481 is 184526.

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

It can be written as a sum of positive squares in 2 ways, for example, as 241081 + 384400 = 491^2 + 620^2 .

It is a cyclic number.

It is not a de Polignac number, because 625481 - 2² = 625477 is a prime.

It is a super-2 number, since 2×625481² = 782452962722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 625481.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 625481.

It is not an unprimeable number, because it can be changed into a prime (625483) 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, 18380 + ... + 18413.

It is an arithmetic number, because the mean of its divisors is an integer number (165573).

2⁶²⁵⁴⁸¹ is an apocalyptic number.

It is an amenable number.

625481 is a deficient number, since it is larger than the sum of its proper divisors (36811).

625481 is a wasteful number, since it uses less digits than its factorization.

625481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36810.

The product of its digits is 1920, while the sum is 26.

The square root of 625481 is about 790.8735676453. The cubic root of 625481 is about 85.5207250011.

The spelling of 625481 in words is "six hundred twenty-five thousand, four hundred eighty-one".