52171904419202 has 4 divisors (see below), whose sum is σ = 78257856628806. Its totient is φ = 26085952209600.

The previous prime is 52171904419181. The next prime is 52171904419211. The reversal of 52171904419202 is 20291440917125.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 51933339577441 + 238564841761 = 7206479^2 + 488431^2 .

It is a super-2 number, since 2×52171904419202² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13042976104799 + ... + 13042976104802.

Almost surely, 2^{52171904419202} is an apocalyptic number.

52171904419202 is a deficient number, since it is larger than the sum of its proper divisors (26085952209604).

52171904419202 is a wasteful number, since it uses less digits than its factorization.

52171904419202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26085952209603.

The product of its (nonzero) digits is 362880, while the sum is 47.

The spelling of 52171904419202 in words is "fifty-two trillion, one hundred seventy-one billion, nine hundred four million, four hundred nineteen thousand, two hundred two".