2451245245 has 4 divisors (see below), whose sum is σ = 2941494300. Its totient is φ = 1960996192.

The previous prime is 2451245201. The next prime is 2451245257. The reversal of 2451245245 is 5425421542.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1268641924 + 1182603321 = 35618^2 + 34389^2 .

It is a cyclic number.

It is not a de Polignac number, because 2451245245 - 2⁷ = 2451245117 is a prime.

It is a super-2 number, since 2×2451245245² = 12017206502270220050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2451245245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245124520 + ... + 245124529.

It is an arithmetic number, because the mean of its divisors is an integer number (735373575).

Almost surely, 2^2451245245 is an apocalyptic number.

It is an amenable number.

2451245245 is a deficient number, since it is larger than the sum of its proper divisors (490249055).

2451245245 is an equidigital number, since it uses as much as digits as its factorization.

2451245245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490249054.

The product of its digits is 64000, while the sum is 34.

The square root of 2451245245 is about 49510.0519591729. The cubic root of 2451245245 is about 1348.3281077306.

Adding to 2451245245 its reverse (5425421542), we get a palindrome (7876666787).

The spelling of 2451245245 in words is "two billion, four hundred fifty-one million, two hundred forty-five thousand, two hundred forty-five".