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542520503 = 7211071847
BaseRepresentation
bin100000010101100…
…011010010110111
31101210211220012222
4200111203102313
52102341124003
6125500032555
716305230300
oct4025432267
91353756188
10542520503
11259269758
1213183275b
1388521c65
14520a37a7
1532966c38
hex205634b7

542520503 has 6 divisors (see below), whose sum is σ = 631095336. Its totient is φ = 465017532.

The previous prime is 542520497. The next prime is 542520521. The reversal of 542520503 is 305025245.

It is not a de Polignac number, because 542520503 - 28 = 542520247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542520533) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5535875 + ... + 5535972.

It is an arithmetic number, because the mean of its divisors is an integer number (105182556).

Almost surely, 2542520503 is an apocalyptic number.

542520503 is a deficient number, since it is larger than the sum of its proper divisors (88574833).

542520503 is a wasteful number, since it uses less digits than its factorization.

542520503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11071861 (or 11071854 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 542520503 is about 23292.0695302071. The cubic root of 542520503 is about 815.5902998855.

Adding to 542520503 its reverse (305025245), we get a palindrome (847545748).

The spelling of 542520503 in words is "five hundred forty-two million, five hundred twenty thousand, five hundred three".

Divisors: 1 7 49 11071847 77502929 542520503