625360161 has 8 divisors (see below), whose sum is σ = 836781984. Its totient is φ = 415422560.

The previous prime is 625360157. The next prime is 625360163. The reversal of 625360161 is 161063526.

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

It is a cyclic number.

It is not a de Polignac number, because 625360161 - 2² = 625360157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (625360163) by changing a digit.

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, 370071 + ... + 371756.

It is an arithmetic number, because the mean of its divisors is an integer number (104597748).

Almost surely, 2^625360161 is an apocalyptic number.

It is an amenable number.

625360161 is a deficient number, since it is larger than the sum of its proper divisors (211421823).

625360161 is a wasteful number, since it uses less digits than its factorization.

625360161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742111.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 625360161 is about 25007.2021825713. The cubic root of 625360161 is about 855.1521729078.

It can be divided in two parts, 625360 and 161, that added together give a triangular number (625521 = T₁₁₁₈).

The spelling of 625360161 in words is "six hundred twenty-five million, three hundred sixty thousand, one hundred sixty-one".