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52502051 = 77500293
BaseRepresentation
bin1100100001000…
…1111000100011
310122210101021102
43020101320203
5101420031201
65113145015
71205155130
oct310217043
9118711242
1052502051
11276aa628
12156bb16b
13ab53204
146d89587
15492126b
hex3211e23

52502051 has 4 divisors (see below), whose sum is σ = 60002352. Its totient is φ = 45001752.

The previous prime is 52502041. The next prime is 52502053. The reversal of 52502051 is 15020525.

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 52502051 - 26 = 52501987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52502053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3750140 + ... + 3750153.

It is an arithmetic number, because the mean of its divisors is an integer number (15000588).

Almost surely, 252502051 is an apocalyptic number.

52502051 is a deficient number, since it is larger than the sum of its proper divisors (7500301).

52502051 is an equidigital number, since it uses as much as digits as its factorization.

52502051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7500300.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 52502051 is about 7245.8299041587. The cubic root of 52502051 is about 374.4484953855.

Adding to 52502051 its reverse (15020525), we get a palindrome (67522576).

The spelling of 52502051 in words is "fifty-two million, five hundred two thousand, fifty-one".

Divisors: 1 7 7500293 52502051