521041534 has 24 divisors (see below), whose sum is σ = 896099760. Its totient is φ = 226332288.

The previous prime is 521041519. The next prime is 521041537. The reversal of 521041534 is 435140125.

It is a happy number.

It is a super-4 number, since 4×521041534⁴ (a number of 36 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 521041499 and 521041508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521041537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39594 + ... + 51085.

It is an arithmetic number, because the mean of its divisors is an integer number (37337490).

Almost surely, 2^521041534 is an apocalyptic number.

521041534 is a deficient number, since it is larger than the sum of its proper divisors (375058226).

521041534 is a wasteful number, since it uses less digits than its factorization.

521041534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90724 (or 90711 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 521041534 is about 22826.3342216835. The cubic root of 521041534 is about 804.6816811737.

Adding to 521041534 its reverse (435140125), we get a palindrome (956181659).

The spelling of 521041534 in words is "five hundred twenty-one million, forty-one thousand, five hundred thirty-four".