2251162548 has 18 divisors (see below), whose sum is σ = 5690438754. Its totient is φ = 750387504.

The previous prime is 2251162499. The next prime is 2251162553. The reversal of 2251162548 is 8452611522.

2251162548 is a `hidden beast` number, since 2 + 2 + 51 + 1 + 62 + 548 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1665619344 + 585543204 = 40812^2 + 24198^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 62532293 = 2251162548 / (2 + 2 + 5 + 1 + 1 + 6 + 2 + 5 + 4 + 8).

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 31266111 + ... + 31266182.

Almost surely, 2^2251162548 is an apocalyptic number.

It is an amenable number.

2251162548 is an abundant number, since it is smaller than the sum of its proper divisors (3439276206).

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

2251162548 is a wasteful number, since it uses less digits than its factorization.

2251162548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62532303 (or 62532298 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 2251162548 is about 47446.4176519155. The cubic root of 2251162548 is about 1310.5963425177.

The spelling of 2251162548 in words is "two billion, two hundred fifty-one million, one hundred sixty-two thousand, five hundred forty-eight".