2251555324 has 6 divisors (see below), whose sum is σ = 3940221824. Its totient is φ = 1125777660.

The previous prime is 2251555321. The next prime is 2251555333. The reversal of 2251555324 is 4235551522.

It is a self number, because there is not a number n which added to its sum of digits gives 2251555324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251555321) by changing a digit.

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 as a sum of consecutive naturals, namely, 281444412 + ... + 281444419.

Almost surely, 2^2251555324 is an apocalyptic number.

It is an amenable number.

2251555324 is a deficient number, since it is larger than the sum of its proper divisors (1688666500).

2251555324 is a wasteful number, since it uses less digits than its factorization.

2251555324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562888835 (or 562888833 counting only the distinct ones).

The product of its digits is 60000, while the sum is 34.

The square root of 2251555324 is about 47450.5566247647. The cubic root of 2251555324 is about 1310.6725610407.

The spelling of 2251555324 in words is "two billion, two hundred fifty-one million, five hundred fifty-five thousand, three hundred twenty-four".