521052061248 has 336 divisors, whose sum is σ = 1568983603200. Its totient is φ = 165126574080.

The previous prime is 521052061213. The next prime is 521052061303. The reversal of 521052061248 is 842160250125.

521052061248 is a `hidden beast` number, since 5 + 2 + 1 + 0 + 520 + 6 + 124 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 323032090 + ... + 323033702.

Almost surely, 2^521052061248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 521052061248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (784491801600).

521052061248 is an abundant number, since it is smaller than the sum of its proper divisors (1047931541952).

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

521052061248 is a wasteful number, since it uses less digits than its factorization.

521052061248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1970 (or 1957 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The spelling of 521052061248 in words is "five hundred twenty-one billion, fifty-two million, sixty-one thousand, two hundred forty-eight".