25710999053 has 8 divisors (see below), whose sum is σ = 27225725688. Its totient is φ = 24196529664.

The previous prime is 25710999049. The next prime is 25710999089. The reversal of 25710999053 is 35099901752.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17408691364 + 8302307689 = 131942^2 + 91117^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 25710999053 - 2² = 25710999049 is a prime.

It is a super-2 number, since 2×25710999053² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25710998992 and 25710999010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25710999023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164825 + ... + 280337.

It is an arithmetic number, because the mean of its divisors is an integer number (3403215711).

Almost surely, 2^25710999053 is an apocalyptic number.

It is an amenable number.

25710999053 is a deficient number, since it is larger than the sum of its proper divisors (1514726635).

25710999053 is a wasteful number, since it uses less digits than its factorization.

25710999053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128623.

The product of its (nonzero) digits is 765450, while the sum is 50.

The spelling of 25710999053 in words is "twenty-five billion, seven hundred ten million, nine hundred ninety-nine thousand, fifty-three".