2251512451 has 8 divisors (see below), whose sum is σ = 2298618000. Its totient is φ = 2204578272.

The previous prime is 2251512449. The next prime is 2251512463. The reversal of 2251512451 is 1542151522.

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

It is a cyclic number.

It is not a de Polignac number, because 2251512451 - 2¹ = 2251512449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2251512401) 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, 16120 + ... + 69013.

It is an arithmetic number, because the mean of its divisors is an integer number (287327250).

Almost surely, 2^2251512451 is an apocalyptic number.

2251512451 is a deficient number, since it is larger than the sum of its proper divisors (47105549).

2251512451 is an equidigital number, since it uses as much as digits as its factorization.

2251512451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85685.

The product of its digits is 4000, while the sum is 28.

The square root of 2251512451 is about 47450.1048576291. The cubic root of 2251512451 is about 1310.6642419289.

Adding to 2251512451 its reverse (1542151522), we get a palindrome (3793663973).

The spelling of 2251512451 in words is "two billion, two hundred fifty-one million, five hundred twelve thousand, four hundred fifty-one".