2015225803400 has 24 divisors (see below), whose sum is σ = 4685399993370. Its totient is φ = 806090321280.

The previous prime is 2015225803313. The next prime is 2015225803403. The reversal of 2015225803400 is 43085225102.

It can be written as a sum of positive squares in 3 ways, for example, as 844748486404 + 1170477316996 = 919102^2 + 1081886^2 .

It is a super-2 number, since 2×2015225803400² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2015225803403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5038064309 + ... + 5038064708.

Almost surely, 2^{2015225803400} is an apocalyptic number.

2015225803400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2015225803400 is an abundant number, since it is smaller than the sum of its proper divisors (2670174189970).

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

2015225803400 is a wasteful number, since it uses less digits than its factorization.

2015225803400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10076129033 (or 10076129024 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The spelling of 2015225803400 in words is "two trillion, fifteen billion, two hundred twenty-five million, eight hundred three thousand, four hundred".