642052275 has 24 divisors (see below), whose sum is σ = 1117398720. Its totient is φ = 324404640.

The previous prime is 642052261. The next prime is 642052283. The reversal of 642052275 is 572250246.

It is not a de Polignac number, because 642052275 - 2⁶ = 642052211 is a prime.

It is a super-2 number, since 2×642052275² = 824462247665351250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 223857 + ... + 226706.

It is an arithmetic number, because the mean of its divisors is an integer number (46558280).

Almost surely, 2^642052275 is an apocalyptic number.

642052275 is a deficient number, since it is larger than the sum of its proper divisors (475346445).

642052275 is a wasteful number, since it uses less digits than its factorization.

642052275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450595 (or 450590 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 33.

The square root of 642052275 is about 25338.7504624833. The cubic root of 642052275 is about 862.6940374194.

The spelling of 642052275 in words is "six hundred forty-two million, fifty-two thousand, two hundred seventy-five".