25251452349 has 8 divisors (see below), whose sum is σ = 34754687232. Its totient is φ = 16291259520.

The previous prime is 25251452327. The next prime is 25251452363. The reversal of 25251452349 is 94325415252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25251452349 - 2⁹ = 25251451837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25251452349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25251452399) 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 7 ways as a sum of consecutive naturals, for example, 135760404 + ... + 135760589.

It is an arithmetic number, because the mean of its divisors is an integer number (4344335904).

Almost surely, 2^25251452349 is an apocalyptic number.

It is an amenable number.

25251452349 is a deficient number, since it is larger than the sum of its proper divisors (9503234883).

25251452349 is a wasteful number, since it uses less digits than its factorization.

25251452349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271521027.

The product of its digits is 432000, while the sum is 42.

The spelling of 25251452349 in words is "twenty-five billion, two hundred fifty-one million, four hundred fifty-two thousand, three hundred forty-nine".