642552025310 has 96 divisors (see below), whose sum is σ = 1299762858240. Its totient is φ = 228331643904.

The previous prime is 642552025309. The next prime is 642552025373. The reversal of 642552025310 is 13520255246.

It is a super-2 number, since 2×642552025310² (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 47 ways as a sum of consecutive naturals, for example, 15319187 + ... + 15361073.

It is an arithmetic number, because the mean of its divisors is an integer number (13539196440).

Almost surely, 2^642552025310 is an apocalyptic number.

642552025310 is an abundant number, since it is smaller than the sum of its proper divisors (657210832930).

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

642552025310 is a wasteful number, since it uses less digits than its factorization.

642552025310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42262 (or 42249 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 642552025310 in words is "six hundred forty-two billion, five hundred fifty-two million, twenty-five thousand, three hundred ten".