521242377532 has 12 divisors (see below), whose sum is σ = 913442836320. Its totient is φ = 260258710016.

The previous prime is 521242377529. The next prime is 521242377547. The reversal of 521242377532 is 235773242125.

It is a super-2 number, since 2×521242377532² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90616453 + ... + 90622204.

It is an arithmetic number, because the mean of its divisors is an integer number (76120236360).

Almost surely, 2^521242377532 is an apocalyptic number.

It is an amenable number.

521242377532 is a deficient number, since it is larger than the sum of its proper divisors (392200458788).

521242377532 is a wasteful number, since it uses less digits than its factorization.

521242377532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181239380 (or 181239378 counting only the distinct ones).

The product of its digits is 705600, while the sum is 43.

The spelling of 521242377532 in words is "five hundred twenty-one billion, two hundred forty-two million, three hundred seventy-seven thousand, five hundred thirty-two".