526505140 has 48 divisors (see below), whose sum is σ = 1266475392. Its totient is φ = 180107136.

The previous prime is 526505137. The next prime is 526505141. The reversal of 526505140 is 41505625.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 526505099 and 526505108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (526505141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61354 + ... + 69406.

It is an arithmetic number, because the mean of its divisors is an integer number (26384904).

Almost surely, 2^526505140 is an apocalyptic number.

It is an amenable number.

526505140 is an abundant number, since it is smaller than the sum of its proper divisors (739970252).

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

526505140 is a wasteful number, since it uses less digits than its factorization.

526505140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8536 (or 8534 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 526505140 is about 22945.6998149980. The cubic root of 526505140 is about 807.4845195076.

The spelling of 526505140 in words is "five hundred twenty-six million, five hundred five thousand, one hundred forty".