525205272040 has 32 divisors (see below), whose sum is σ = 1186783607880. Its totient is φ = 209180465152.

The previous prime is 525205272037. The next prime is 525205272043. The reversal of 525205272040 is 40272502525.

It is an interprime number because it is at equal distance from previous prime (525205272037) and next prime (525205272043).

It can be written as a sum of positive squares in 4 ways, for example, as 406556713924 + 118648558116 = 637618^2 + 344454^2 .

It is a super-2 number, since 2×525205272040² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 525205271987 and 525205272005.

It is not an unprimeable number, because it can be changed into a prime (525205272043) 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, 28166929 + ... + 28185568.

Almost surely, 2^525205272040 is an apocalyptic number.

It is an amenable number.

525205272040 is an abundant number, since it is smaller than the sum of its proper divisors (661578335840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

525205272040 is a wasteful number, since it uses less digits than its factorization.

525205272040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56352741 (or 56352737 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 34.

Adding to 525205272040 its reverse (40272502525), we get a palindrome (565477774565).

The spelling of 525205272040 in words is "five hundred twenty-five billion, two hundred five million, two hundred seventy-two thousand, forty".