525146020040 has 32 divisors (see below), whose sum is σ = 1181634367680. Its totient is φ = 210048484032.

The previous prime is 525146019997. The next prime is 525146020043. The reversal of 525146020040 is 40020641525.

It is a junction number, because it is equal to n+sod(n) for n = 525146019985 and 525146020012.

It is not an unprimeable number, because it can be changed into a prime (525146020043) 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, 578567 + ... + 1176873.

It is an arithmetic number, because the mean of its divisors is an integer number (36926073990).

Almost surely, 2^525146020040 is an apocalyptic number.

It is an amenable number.

525146020040 is an abundant number, since it is smaller than the sum of its proper divisors (656488347640).

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

525146020040 is a wasteful number, since it uses less digits than its factorization.

525146020040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620261 (or 620257 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 525146020040 its reverse (40020641525), we get a palindrome (565166661565).

The spelling of 525146020040 in words is "five hundred twenty-five billion, one hundred forty-six million, twenty thousand, forty".