625172105 has 16 divisors (see below), whose sum is σ = 795924480. Its totient is φ = 470074752.

The previous prime is 625172101. The next prime is 625172113. The reversal of 625172105 is 501271526.

It is not a de Polignac number, because 625172105 - 2² = 625172101 is a prime.

It is a super-3 number, since 3×625172105³ (a number of 27 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (625172101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13844 + ... + 37973.

It is an arithmetic number, because the mean of its divisors is an integer number (49745280).

Almost surely, 2^625172105 is an apocalyptic number.

It is an amenable number.

625172105 is a deficient number, since it is larger than the sum of its proper divisors (170752375).

625172105 is a wasteful number, since it uses less digits than its factorization.

625172105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51968.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 625172105 is about 25003.4418630716. The cubic root of 625172105 is about 855.0664449120.

The spelling of 625172105 in words is "six hundred twenty-five million, one hundred seventy-two thousand, one hundred five".