2531242451 has 8 divisors (see below), whose sum is σ = 2588157264. Its totient is φ = 2474956800.

The previous prime is 2531242393. The next prime is 2531242457. The reversal of 2531242451 is 1542421352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2531242451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2531242457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149150 + ... + 165251.

It is an arithmetic number, because the mean of its divisors is an integer number (323519658).

Almost surely, 2^2531242451 is an apocalyptic number.

2531242451 is a deficient number, since it is larger than the sum of its proper divisors (56914813).

2531242451 is an equidigital number, since it uses as much as digits as its factorization.

2531242451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314581.

The product of its digits is 9600, while the sum is 29.

The square root of 2531242451 is about 50311.4544711242. The cubic root of 2531242451 is about 1362.8390898135.

The spelling of 2531242451 in words is "two billion, five hundred thirty-one million, two hundred forty-two thousand, four hundred fifty-one".