525280128247 has 8 divisors (see below), whose sum is σ = 601633761056. Its totient is φ = 449254899072.

The previous prime is 525280128211. The next prime is 525280128283. The reversal of 525280128247 is 742821082525.

It is an interprime number because it is at equal distance from previous prime (525280128211) and next prime (525280128283).

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

It is not a de Polignac number, because 525280128247 - 2³¹ = 523132644599 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 525280128197 and 525280128206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525280128287) 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, 82097478 + ... + 82103875.

It is an arithmetic number, because the mean of its divisors is an integer number (75204220132).

Almost surely, 2^525280128247 is an apocalyptic number.

525280128247 is a deficient number, since it is larger than the sum of its proper divisors (76353632809).

525280128247 is a wasteful number, since it uses less digits than its factorization.

525280128247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164201817.

The product of its (nonzero) digits is 716800, while the sum is 46.

The spelling of 525280128247 in words is "five hundred twenty-five billion, two hundred eighty million, one hundred twenty-eight thousand, two hundred forty-seven".