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5139125051 = 19925824749
BaseRepresentation
bin1001100100101000…
…01101001100111011
3111021011011121020212
410302110031030323
541011104000201
62205541141335
7241231561604
oct46224151473
914234147225
105139125051
1121a79a1795
12bb50ba84b
1363b9208c8
1436a758dab
15201288abb
hex13250d33b

5139125051 has 4 divisors (see below), whose sum is σ = 5164950000. Its totient is φ = 5113300104.

The previous prime is 5139125039. The next prime is 5139125059. The reversal of 5139125051 is 1505219315.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1505219315 = 5301043863.

It is a cyclic number.

It is not a de Polignac number, because 5139125051 - 210 = 5139124027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5139124999 and 5139125017.

It is not an unprimeable number, because it can be changed into a prime (5139125059) 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, 12912176 + ... + 12912573.

It is an arithmetic number, because the mean of its divisors is an integer number (1291237500).

Almost surely, 25139125051 is an apocalyptic number.

5139125051 is a deficient number, since it is larger than the sum of its proper divisors (25824949).

5139125051 is a wasteful number, since it uses less digits than its factorization.

5139125051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25824948.

The product of its (nonzero) digits is 6750, while the sum is 32.

The square root of 5139125051 is about 71687.6910703644. The cubic root of 5139125051 is about 1725.6911101497.

The spelling of 5139125051 in words is "five billion, one hundred thirty-nine million, one hundred twenty-five thousand, fifty-one".

Divisors: 1 199 25824749 5139125051