2251053081 has 6 divisors (see below), whose sum is σ = 3251521130. Its totient is φ = 1500702048.

The previous prime is 2251053071. The next prime is 2251053107. The reversal of 2251053081 is 1803501522.

It is a happy number.

2251053081 is a `hidden beast` number, since 2 + 2 + 51 + 0 + 530 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2233413081 + 17640000 = 47259^2 + 4200^2 .

It is not a de Polignac number, because 2251053081 - 2¹³ = 2251044889 is a prime.

It is a super-2 number, since 2×2251053081² = 10134479946959185122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2251053001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 125058496 + ... + 125058513.

Almost surely, 2^2251053081 is an apocalyptic number.

It is an amenable number.

2251053081 is a deficient number, since it is larger than the sum of its proper divisors (1000468049).

2251053081 is a wasteful number, since it uses less digits than its factorization.

2251053081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250117015 (or 250117012 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 2251053081 is about 47445.2640523793. The cubic root of 2251053081 is about 1310.5750987718.

The spelling of 2251053081 in words is "two billion, two hundred fifty-one million, fifty-three thousand, eighty-one".