2451515456 has 28 divisors (see below), whose sum is σ = 5238937452. Its totient is φ = 1131468288.

The previous prime is 2451515453. The next prime is 2451515483. The reversal of 2451515456 is 6545151542.

It can be written as a sum of positive squares in 2 ways, for example, as 1389798400 + 1061717056 = 37280^2 + 32584^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2451515453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1472435 + ... + 1474098.

It is an arithmetic number, because the mean of its divisors is an integer number (187104909).

Almost surely, 2^2451515456 is an apocalyptic number.

2451515456 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2451515456 is an abundant number, since it is smaller than the sum of its proper divisors (2787421996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2451515456 is a wasteful number, since it uses less digits than its factorization.

2451515456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2946558 (or 2946548 counting only the distinct ones).

The product of its digits is 120000, while the sum is 38.

The square root of 2451515456 is about 49512.7807338671. The cubic root of 2451515456 is about 1348.3776498563.

Adding to 2451515456 its reverse (6545151542), we get a palindrome (8996666998).

The spelling of 2451515456 in words is "two billion, four hundred fifty-one million, five hundred fifteen thousand, four hundred fifty-six".