57206734530 has 192 divisors, whose sum is σ = 154717516800. Its totient is φ = 13522537600.

The previous prime is 57206734517. The next prime is 57206734577. The reversal of 57206734530 is 3543760275.

It is a super-2 number, since 2×57206734530² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 28055251 + ... + 28057289.

It is an arithmetic number, because the mean of its divisors is an integer number (805820400).

Almost surely, 2^57206734530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57206734530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77358758400).

57206734530 is an abundant number, since it is smaller than the sum of its proper divisors (97510782270).

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

57206734530 is a wasteful number, since it uses less digits than its factorization.

57206734530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2261 (or 2250 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 42.

The spelling of 57206734530 in words is "fifty-seven billion, two hundred six million, seven hundred thirty-four thousand, five hundred thirty".