210154010225 has 12 divisors (see below), whose sum is σ = 260596914480. Its totient is φ = 168119374800.

The previous prime is 210154010207. The next prime is 210154010237. The reversal of 210154010225 is 522010451012.

It is not a de Polignac number, because 210154010225 - 2⁸ = 210154009969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210154010225.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1636610 + ... + 1760340.

It is an arithmetic number, because the mean of its divisors is an integer number (21716409540).

Almost surely, 2^210154010225 is an apocalyptic number.

210154010225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

210154010225 is a deficient number, since it is larger than the sum of its proper divisors (50442904255).

210154010225 is a wasteful number, since it uses less digits than its factorization.

210154010225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191680 (or 191675 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 210154010225 its reverse (522010451012), we get a palindrome (732164461237).

The spelling of 210154010225 in words is "two hundred ten billion, one hundred fifty-four million, ten thousand, two hundred twenty-five".