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52570051 = 137383723
BaseRepresentation
bin1100100010001…
…0011111000011
310122220211112221
43020202133003
5101424220201
65114431511
71205560312
oct310423703
9118824487
1052570051
1127746726
1215732597
13ab78151
146da6279
1549364a1
hex32227c3

52570051 has 4 divisors (see below), whose sum is σ = 52953912. Its totient is φ = 52186192.

The previous prime is 52570013. The next prime is 52570061. The reversal of 52570051 is 15007525.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 52570051 - 215 = 52537283 is a prime.

It is a super-2 number, since 2×525700512 = 5527220524285202, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52569998 and 52570025.

It is not an unprimeable number, because it can be changed into a prime (52570061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191725 + ... + 191998.

It is an arithmetic number, because the mean of its divisors is an integer number (13238478).

Almost surely, 252570051 is an apocalyptic number.

52570051 is a deficient number, since it is larger than the sum of its proper divisors (383861).

52570051 is a wasteful number, since it uses less digits than its factorization.

52570051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383860.

The product of its (nonzero) digits is 1750, while the sum is 25.

The square root of 52570051 is about 7250.5207399193. The cubic root of 52570051 is about 374.6100859786.

Adding to 52570051 its reverse (15007525), we get a palindrome (67577576).

The spelling of 52570051 in words is "fifty-two million, five hundred seventy thousand, fifty-one".

Divisors: 1 137 383723 52570051