2215251450 has 48 divisors (see below), whose sum is σ = 6104252160. Its totient is φ = 590733360.

The previous prime is 2215251433. The next prime is 2215251473. The reversal of 2215251450 is 541525122.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 819114 + ... + 821813.

It is an arithmetic number, because the mean of its divisors is an integer number (127171920).

Almost surely, 2^2215251450 is an apocalyptic number.

2215251450 is an abundant number, since it is smaller than the sum of its proper divisors (3889000710).

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

2215251450 is a wasteful number, since it uses less digits than its factorization.

2215251450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640948 (or 1640937 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 2215251450 is about 47066.4578017084. The cubic root of 2215251450 is about 1303.5899686432.

Adding to 2215251450 its reverse (541525122), we get a palindrome (2756776572).

The spelling of 2215251450 in words is "two billion, two hundred fifteen million, two hundred fifty-one thousand, four hundred fifty".