25028430349 has 6 divisors (see below), whose sum is σ = 27101791626. Its totient is φ = 23103166320.

The previous prime is 25028430311. The next prime is 25028430359. The reversal of 25028430349 is 94303482052.

It can be written as a sum of positive squares in 3 ways, for example, as 2754360324 + 22274070025 = 52482^2 + 149245^2 .

It is not a de Polignac number, because 25028430349 - 2²¹ = 25026333197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25028430359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 74048442 + ... + 74048779.

It is an arithmetic number, because the mean of its divisors is an integer number (4516965271).

Almost surely, 2^25028430349 is an apocalyptic number.

It is an amenable number.

25028430349 is a deficient number, since it is larger than the sum of its proper divisors (2073361277).

25028430349 is a wasteful number, since it uses less digits than its factorization.

25028430349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148097247 (or 148097234 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 25028430349 in words is "twenty-five billion, twenty-eight million, four hundred thirty thousand, three hundred forty-nine".