2251052446 has 4 divisors (see below), whose sum is σ = 3376578672. Its totient is φ = 1125526222.

The previous prime is 2251052387. The next prime is 2251052449. The reversal of 2251052446 is 6442501522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6442501522 = 2 ⋅3221250761.

It is a super-2 number, since 2×2251052446² = 10134474229285165832, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251052449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562763110 + ... + 562763113.

It is an arithmetic number, because the mean of its divisors is an integer number (844144668).

Almost surely, 2^2251052446 is an apocalyptic number.

2251052446 is a deficient number, since it is larger than the sum of its proper divisors (1125526226).

2251052446 is a wasteful number, since it uses less digits than its factorization.

2251052446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125526225.

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 2251052446 is about 47445.2573604570. The cubic root of 2251052446 is about 1310.5749755384.

Adding to 2251052446 its reverse (6442501522), we get a palindrome (8693553968).

The spelling of 2251052446 in words is "two billion, two hundred fifty-one million, fifty-two thousand, four hundred forty-six".