625025643 has 32 divisors (see below), whose sum is σ = 926069760. Its totient is φ = 371804160.

The previous prime is 625025641. The next prime is 625025651. The reversal of 625025643 is 346520526.

It is not a de Polignac number, because 625025643 - 2¹ = 625025641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (625025641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 512971 + ... + 514187.

It is an arithmetic number, because the mean of its divisors is an integer number (28939680).

Almost surely, 2^625025643 is an apocalyptic number.

625025643 is a deficient number, since it is larger than the sum of its proper divisors (301044117).

625025643 is a wasteful number, since it uses less digits than its factorization.

625025643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507.

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 625025643 is about 25000.5128547396. The cubic root of 625025643 is about 854.9996662220. Note that the first 3 decimals are identical.

The spelling of 625025643 in words is "six hundred twenty-five million, twenty-five thousand, six hundred forty-three".