4490566251 has 4 divisors (see below), whose sum is σ = 5987421672. Its totient is φ = 2993710832.

The previous prime is 4490566237. The next prime is 4490566291. The reversal of 4490566251 is 1526650944.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4490566251 - 2⁶ = 4490566187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4490566231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 748427706 + ... + 748427711.

It is an arithmetic number, because the mean of its divisors is an integer number (1496855418).

Almost surely, 2^4490566251 is an apocalyptic number.

4490566251 is a deficient number, since it is larger than the sum of its proper divisors (1496855421).

4490566251 is a wasteful number, since it uses less digits than its factorization.

4490566251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1496855420.

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 4490566251 is about 67011.6874209268. The cubic root of 4490566251 is about 1649.8091301711.

It can be divided in two parts, 44905 and 66251, that added together give a triangular number (111156 = T₄₇₁).

The spelling of 4490566251 in words is "four billion, four hundred ninety million, five hundred sixty-six thousand, two hundred fifty-one".