625820145 has 16 divisors (see below), whose sum is σ = 1035840960. Its totient is φ = 322261184.

The previous prime is 625820137. The next prime is 625820191. The reversal of 625820145 is 541028526.

It is a cyclic number.

It is not a de Polignac number, because 625820145 - 2³ = 625820137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 718899 + ... + 719768.

It is an arithmetic number, because the mean of its divisors is an integer number (64740060).

Almost surely, 2^625820145 is an apocalyptic number.

It is an amenable number.

625820145 is a deficient number, since it is larger than the sum of its proper divisors (410020815).

625820145 is a wasteful number, since it uses less digits than its factorization.

625820145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438704.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 625820145 is about 25016.3975224252. The cubic root of 625820145 is about 855.3617907337.

The spelling of 625820145 in words is "six hundred twenty-five million, eight hundred twenty thousand, one hundred forty-five".