620142625 has 8 divisors (see below), whose sum is σ = 773938152. Its totient is φ = 496114000.

The previous prime is 620142617. The next prime is 620142697. The reversal of 620142625 is 526241026.

It can be written as a sum of positive squares in 4 ways, for example, as 30041361 + 590101264 = 5481^2 + 24292^2 .

It is not a de Polignac number, because 620142625 - 2³ = 620142617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 620142593 and 620142602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2480446 + ... + 2480695.

It is an arithmetic number, because the mean of its divisors is an integer number (96742269).

Almost surely, 2^620142625 is an apocalyptic number.

It is an amenable number.

620142625 is a deficient number, since it is larger than the sum of its proper divisors (153795527).

620142625 is an equidigital number, since it uses as much as digits as its factorization.

620142625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4961156 (or 4961146 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 620142625 is about 24902.6630102084. The cubic root of 620142625 is about 852.7672785883.

The spelling of 620142625 in words is "six hundred twenty million, one hundred forty-two thousand, six hundred twenty-five".