2170625500 has 24 divisors (see below), whose sum is σ = 4740647184. Its totient is φ = 868250000.

The previous prime is 2170625491. The next prime is 2170625507. The reversal of 2170625500 is 55260712.

It is a super-2 number, since 2×2170625500² = 9423230122500500000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2170625507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2170126 + ... + 2171125.

It is an arithmetic number, because the mean of its divisors is an integer number (197526966).

Almost surely, 2^2170625500 is an apocalyptic number.

2170625500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2170625500 is an abundant number, since it is smaller than the sum of its proper divisors (2570021684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2170625500 is a wasteful number, since it uses less digits than its factorization.

2170625500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4341270 (or 4341258 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 2170625500 is about 46589.9720970082. The cubic root of 2170625500 is about 1294.7769724693.

The spelling of 2170625500 in words is "two billion, one hundred seventy million, six hundred twenty-five thousand, five hundred".