1254260551 has 4 divisors (see below), whose sum is σ = 1255611600. Its totient is φ = 1252909504.

The previous prime is 1254260549. The next prime is 1254260591. The reversal of 1254260551 is 1550624521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1550624521 = 103 ⋅15054607.

It is a cyclic number.

It is not a de Polignac number, because 1254260551 - 2¹ = 1254260549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1254260531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 674131 + ... + 675988.

It is an arithmetic number, because the mean of its divisors is an integer number (313902900).

Almost surely, 2^1254260551 is an apocalyptic number.

1254260551 is a deficient number, since it is larger than the sum of its proper divisors (1351049).

1254260551 is an equidigital number, since it uses as much as digits as its factorization.

1254260551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351048.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 1254260551 is about 35415.5410942710. The cubic root of 1254260551 is about 1078.4398343218.

The spelling of 1254260551 in words is "one billion, two hundred fifty-four million, two hundred sixty thousand, five hundred fifty-one".