254351415551 has 4 divisors (see below), whose sum is σ = 254372760312. Its totient is φ = 254330070792.

The previous prime is 254351415517. The next prime is 254351415581. The reversal of 254351415551 is 155514153452.

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-254351415551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 254351415499 and 254351415508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254351415511) 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, 10654496 + ... + 10678341.

It is an arithmetic number, because the mean of its divisors is an integer number (63593190078).

Almost surely, 2^254351415551 is an apocalyptic number.

254351415551 is a deficient number, since it is larger than the sum of its proper divisors (21344761).

254351415551 is a wasteful number, since it uses less digits than its factorization.

254351415551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21344760.

The product of its digits is 300000, while the sum is 41.

The spelling of 254351415551 in words is "two hundred fifty-four billion, three hundred fifty-one million, four hundred fifteen thousand, five hundred fifty-one".