254235390029 has 4 divisors (see below), whose sum is σ = 255326529276. Its totient is φ = 253144250784.

The previous prime is 254235390001. The next prime is 254235390049. The reversal of 254235390029 is 920093532452.

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

It can be written as a sum of positive squares in 2 ways, for example, as 59193916804 + 195041473225 = 243298^2 + 441635^2 .

It is a cyclic number.

It is not a de Polignac number, because 254235390029 - 2⁸ = 254235389773 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 (254235390049) 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, 545569274 + ... + 545569739.

It is an arithmetic number, because the mean of its divisors is an integer number (63831632319).

Almost surely, 2^254235390029 is an apocalyptic number.

It is an amenable number.

254235390029 is a deficient number, since it is larger than the sum of its proper divisors (1091139247).

254235390029 is a wasteful number, since it uses less digits than its factorization.

254235390029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091139246.

The product of its (nonzero) digits is 583200, while the sum is 44.

The spelling of 254235390029 in words is "two hundred fifty-four billion, two hundred thirty-five million, three hundred ninety thousand, twenty-nine".