2251377 has 6 divisors (see below), whose sum is σ = 3252002. Its totient is φ = 1500912.

The previous prime is 2251373. The next prime is 2251397. The reversal of 2251377 is 7731522.

It can be written as a sum of positive squares in only one way, i.e., 1846881 + 404496 = 1359^2 + 636^2 .

It is not a de Polignac number, because 2251377 - 2² = 2251373 is a prime.

It is a super-2 number, since 2×2251377² = 10137396792258, which contains 22 as substring.

It is a Duffinian number.

2251377 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2251377.

It is not an unprimeable number, because it can be changed into a prime (2251373) 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, 125068 + ... + 125085.

2^2251377 is an apocalyptic number.

It is an amenable number.

2251377 is a deficient number, since it is larger than the sum of its proper divisors (1000625).

2251377 is a wasteful number, since it uses less digits than its factorization.

2251377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250159 (or 250156 counting only the distinct ones).

The product of its digits is 2940, while the sum is 27.

The square root of 2251377 is about 1500.4589297945. The cubic root of 2251377 is about 131.0637958213.

Adding to 2251377 its reverse (7731522), we get a palindrome (9982899).

It can be divided in two parts, 2251 and 377, that added together give a triangular number (2628 = T₇₂).

The spelling of 2251377 in words is "two million, two hundred fifty-one thousand, three hundred seventy-seven".