Search a number
-
+
57015878551 is a prime number
BaseRepresentation
bin110101000110011010…
…010100001110010111
312110011112102201200121
4311012122110032113
51413232031103201
642105344052411
74055622654112
oct650632241627
9173145381617
1057015878551
11221a8a82495
12b072604107
1354b8445158
142a8c421579
15173a7989a1
hexd46694397

57015878551 has 2 divisors, whose sum is σ = 57015878552. Its totient is φ = 57015878550.

The previous prime is 57015878431. The next prime is 57015878573. The reversal of 57015878551 is 15587851075.

57015878551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57015878551 - 223 = 57007489943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57015818551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28507939275 + 28507939276.

It is an arithmetic number, because the mean of its divisors is an integer number (28507939276).

Almost surely, 257015878551 is an apocalyptic number.

57015878551 is a deficient number, since it is larger than the sum of its proper divisors (1).

57015878551 is an equidigital number, since it uses as much as digits as its factorization.

57015878551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1960000, while the sum is 52.

The spelling of 57015878551 in words is "fifty-seven billion, fifteen million, eight hundred seventy-eight thousand, five hundred fifty-one".