507625645 has 8 divisors (see below), whose sum is σ = 610023960. Its totient is φ = 405518400.

The previous prime is 507625631. The next prime is 507625669. The reversal of 507625645 is 546526705.

It can be written as a sum of positive squares in 4 ways, for example, as 66373609 + 441252036 = 8147^2 + 21006^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 507625645 - 2⁹ = 507625133 is a prime.

It is a super-3 number, since 3×507625645³ (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 507625598 and 507625607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68910 + ... + 75919.

It is an arithmetic number, because the mean of its divisors is an integer number (76252995).

Almost surely, 2^507625645 is an apocalyptic number.

It is an amenable number.

507625645 is a deficient number, since it is larger than the sum of its proper divisors (102398315).

507625645 is a wasteful number, since it uses less digits than its factorization.

507625645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145535.

The product of its (nonzero) digits is 252000, while the sum is 40.

The square root of 507625645 is about 22530.5491499874. The cubic root of 507625645 is about 797.7151707608.

The spelling of 507625645 in words is "five hundred seven million, six hundred twenty-five thousand, six hundred forty-five".