2547375251 has 4 divisors (see below), whose sum is σ = 2697220872. Its totient is φ = 2397529632.

The previous prime is 2547375221. The next prime is 2547375263. The reversal of 2547375251 is 1525737452.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2547375251 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2547375199 and 2547375208.

It is not an unprimeable number, because it can be changed into a prime (2547375221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74922785 + ... + 74922818.

It is an arithmetic number, because the mean of its divisors is an integer number (674305218).

Almost surely, 2^2547375251 is an apocalyptic number.

2547375251 is a deficient number, since it is larger than the sum of its proper divisors (149845621).

2547375251 is a wasteful number, since it uses less digits than its factorization.

2547375251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149845620.

The product of its digits is 294000, while the sum is 41.

The square root of 2547375251 is about 50471.5291129563. The cubic root of 2547375251 is about 1365.7282987915.

The spelling of 2547375251 in words is "two billion, five hundred forty-seven million, three hundred seventy-five thousand, two hundred fifty-one".