210080139025 has 45 divisors (see below), whose sum is σ = 272300873061. Its totient is φ = 160780092480.

The previous prime is 210080139023. The next prime is 210080139041. The reversal of 210080139025 is 520931080012.

The square root of 210080139025 is 458345.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 22 ways, for example, as 207577738449 + 2502400576 = 455607^2 + 50024^2 .

It is not a de Polignac number, because 210080139025 - 2¹ = 210080139023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210080139023) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1927340671 + ... + 1927340779.

Almost surely, 2^210080139025 is an apocalyptic number.

210080139025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

210080139025 is the 458345-th square number.

210080139025 is the 229173-rd centered octagonal number.

It is an amenable number.

210080139025 is a deficient number, since it is larger than the sum of its proper divisors (62220734036).

210080139025 is an frugal number, since it uses more digits than its factorization.

210080139025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 210080139025 in words is "two hundred ten billion, eighty million, one hundred thirty-nine thousand, twenty-five".