525478525274361 has 4 divisors (see below), whose sum is σ = 700638033699152. Its totient is φ = 350319016849572.

The previous prime is 525478525274333. The next prime is 525478525274363. The reversal of 525478525274361 is 163472525874525.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 525478525274361 - 2³¹ = 525476377790713 is a prime.

It is a super-2 number, since 2×525478525274361² (a number of 30 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 525478525274292 and 525478525274301.

It is not an unprimeable number, because it can be changed into a prime (525478525274363) 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, 87579754212391 + ... + 87579754212396.

It is an arithmetic number, because the mean of its divisors is an integer number (175159508424788).

Almost surely, 2^{525478525274361} is an apocalyptic number.

It is an amenable number.

525478525274361 is a deficient number, since it is larger than the sum of its proper divisors (175159508424791).

525478525274361 is a wasteful number, since it uses less digits than its factorization.

525478525274361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175159508424790.

The product of its digits is 564480000, while the sum is 66.

The spelling of 525478525274361 in words is "five hundred twenty-five trillion, four hundred seventy-eight billion, five hundred twenty-five million, two hundred seventy-four thousand, three hundred sixty-one".