52172552251 has 8 divisors (see below), whose sum is σ = 54447348384. Its totient is φ = 49898291520.

The previous prime is 52172552239. The next prime is 52172552279. The reversal of 52172552251 is 15225527125.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52172552251 - 2¹³ = 52172544059 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52172552251.

It is not an unprimeable number, because it can be changed into a prime (52172502251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72045 + ... + 330961.

It is an arithmetic number, because the mean of its divisors is an integer number (6805918548).

Almost surely, 2^52172552251 is an apocalyptic number.

52172552251 is a deficient number, since it is larger than the sum of its proper divisors (2274796133).

52172552251 is a wasteful number, since it uses less digits than its factorization.

52172552251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267701.

The product of its digits is 70000, while the sum is 37.

The spelling of 52172552251 in words is "fifty-two billion, one hundred seventy-two million, five hundred fifty-two thousand, two hundred fifty-one".