2251455401 has 16 divisors (see below), whose sum is σ = 2570576400. Its totient is φ = 1953497088.

The previous prime is 2251455347. The next prime is 2251455403. The reversal of 2251455401 is 1045541522.

2251455401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 54096025 + 2197359376 = 7355^2 + 46876^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2251455401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2251455403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177065 + ... + 189353.

It is an arithmetic number, because the mean of its divisors is an integer number (160661025).

Almost surely, 2^2251455401 is an apocalyptic number.

It is an amenable number.

2251455401 is a deficient number, since it is larger than the sum of its proper divisors (319120999).

2251455401 is a wasteful number, since it uses less digits than its factorization.

2251455401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13148.

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 2251455401 is about 47449.5036960346. The cubic root of 2251455401 is about 1310.6531717368.

Adding to 2251455401 its reverse (1045541522), we get a palindrome (3296996923).

The spelling of 2251455401 in words is "two billion, two hundred fifty-one million, four hundred fifty-five thousand, four hundred one".