254115551 has 4 divisors (see below), whose sum is σ = 254187600. Its totient is φ = 254043504.

The previous prime is 254115527. The next prime is 254115583. The reversal of 254115551 is 155511452.

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

It is a cyclic number.

It is not a de Polignac number, because 254115551 - 2¹⁰ = 254114527 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 (254115751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30446 + ... + 37883.

It is an arithmetic number, because the mean of its divisors is an integer number (63546900).

Almost surely, 2^254115551 is an apocalyptic number.

254115551 is a deficient number, since it is larger than the sum of its proper divisors (72049).

254115551 is an equidigital number, since it uses as much as digits as its factorization.

254115551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72048.

The product of its digits is 5000, while the sum is 29.

The square root of 254115551 is about 15941.0021955961. The cubic root of 254115551 is about 633.3985736733.

The spelling of 254115551 in words is "two hundred fifty-four million, one hundred fifteen thousand, five hundred fifty-one".