Search a number
-
+
25070200531 is a prime number
BaseRepresentation
bin10111010110010011…
…001110011011010011
32101201012000010211121
4113112103032123103
5402320432404111
615303405223111
71545156121435
oct272623163323
971635003747
1025070200531
11a6a55247a2
124a37b61a97
132496c453ac
1412db81c655
159bae3c871
hex5d64ce6d3

25070200531 has 2 divisors, whose sum is σ = 25070200532. Its totient is φ = 25070200530.

The previous prime is 25070200513. The next prime is 25070200613. The reversal of 25070200531 is 13500207052.

Together with previous prime (25070200513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25070200531 - 215 = 25070167763 is a prime.

It is a super-2 number, since 2×250702005312 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25070200496 and 25070200505.

It is not a weakly prime, because it can be changed into another prime (25070200501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12535100265 + 12535100266.

It is an arithmetic number, because the mean of its divisors is an integer number (12535100266).

Almost surely, 225070200531 is an apocalyptic number.

25070200531 is a deficient number, since it is larger than the sum of its proper divisors (1).

25070200531 is an equidigital number, since it uses as much as digits as its factorization.

25070200531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2100, while the sum is 25.

Adding to 25070200531 its reverse (13500207052), we get a palindrome (38570407583).

The spelling of 25070200531 in words is "twenty-five billion, seventy million, two hundred thousand, five hundred thirty-one".